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  1. By: Field, Thomas W. (Thomas Warren),
    Publication info: New York, A. O. Moore, 1858
    Holding Institution: Multiple institutions
    Subjects: Pear  Pyrus communis  
  2. By: Field, Thomas W. (Thomas Warren),
    Publication info: New York, A.O. Moore, 1858
    Holding Institution: Library of Congress
    Subjects: Pear  
  3. By: Field, Thomas W. (Thomas Warren),
    Publication info: New York, A. O. Moore, 1859
    Holding Institution: Library of Congress
    Subjects: Pear  
  4. By: Mortillet, Paul de,
    Edition: 2. éd.
    Publication info: Grenoble, Prudhomme, 1860
    Holding Institution: Library of Congress
    Subjects: Pear  
  5. By: Quinn, P. T. (Patrick T.),
    Publication info: New York, Orange Judd Company, [c.1869]
    Holding Institution: University of California Libraries
    Subjects: Pear  
  6. By: Quinn, P. T. (Patrick T.),
    Publication info: New York, The Tribune association, 1869
    Holding Institution: Library of Congress
    Subjects: Pear  
  7. By: Black, John Janvier,
    Publication info: Wilmington, James & Webb Printing, 1886
    Holding Institution: Multiple institutions
    Subjects: Delaware  Fruit-culture  Maryland  Peach  Pear  Quince  
  8. By: Arthur, Joseph Charles,
    Publication info: Philadelphia, 1886
    Holding Institution: Library of Congress
    Subjects: Diseases and pests  Pear  
  9. By: Panton, J. Hoyes (James Hoyes), - Ontario Agricultural College. - Ontario. Dept. of Agriculture.
    Publication info: [Toronto?], Dept. of Agriculture, 1891
    Holding Institution: Canadiana.org
    Subjects: Control  Diseases and pests  Insect pests  Ontario  Pear  
  10. By: Quinn, P. T. (Patrick T.),
    Edition: New ed., rev. by the author.
    Publication info: New York, Orange Judd, 1892
    Holding Institution: University of California Libraries
    Subjects: Pear  
  11. By: Waite, Merton Benway,
    Publication info: Washington, Govt. Print. Off, 1894
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Fertilization of plants  Pear  
  12. By: Kinney, L. F.
    Publication info: Kingston, R.I, Agricultural Experiment Station of the Rhode Island College of Agriculture and Mechanic Arts, 1895
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Apples  Control  Diseases and pests  Pear  Quince  Spraying and dusting in agriculture  
  13. By: Marlatt, C. L. - United States. Division of Entomology. - United States. Department of Agriculture.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Division of Entomology, 1897
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Diseases and pests  Fruit  Pear  
  14. By: Bartrum, Edward,
    Publication info: London, J. Lane, 1903
    Holding Institution: University of California Libraries
    Subjects: Fruit-culture  Pear  Plum  
  15. By: Powell, George Harold. - Fulton, S. H.
    Publication info: Washington, Govt. Print Off, 1903
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Cold storage  Pear  Storage
  16. By: Bunyard, George.
    Publication info: London, T.C. & E.C. Jack, [1911]
    Holding Institution: University of California Libraries
    Subjects: Apples  Pear  
  17. By: Griffiths, David,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1915
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Pear  Texas  
  18. By: Nougaret, R. L. (Raymond Louis), - Davidson, W. M. - Newcomer, E. J. (Erval Jackson),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1916
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Diseases and pests  Pear  Pear leaf-worm  
  19. By: Brittain, W. H. (William Harold), - Nova Scotia Agricultural College.
    Publication info: Truro, N.S, [s.n.], 1917
    Holding Institution: Canadiana.org
    Subjects: Apples  Diseases and pests  Fruit  Nova Scotia  Ontario  Pear  
  20. By: Weldon, Geo. P. (George Percival),
    Publication info: Sacramento, State Print. Off, 1918
    Holding Institution: University of California Libraries
    Subjects: California  Fruit-culture  Pear  
  21. By: Colby, Arthur Samuel.
    Publication info: 1919
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: 1919  Apples  Botany  Diseases and pests  Pear  Phyllachora  Theses  UIUC  
  22. By: Brooks, Fred E. (Fred Ernest),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Diseases and pests  Pear  Pear fruit-borer  
  23. By: Hedrick, U. P. - Francis, Edward H., - Howe, G. H. - Taylor, O. M. (Orrin Morehouse), - Tukey, H. B. (Harold Bradford), - New York (State). Dept. of Agriculture and Markets. - New York State Agricultural Experiment Station.
    Publication info: Albany, J. B. Lyon company, 1921
    Holding Institution: Cornell University Library
    Subjects: Fruit-culture  Pear  
  24. By: Hedrick, U. P. - Francis, E. H. - Howe, G. H. - Taylor, O. M. (Orrin Morehouse), - Tukey, H. B. (Harold Bradford), - New York (State). Dept. of Agriculture. - New York State Agricultural Experiment Station.
    Publication info: Albany, J. B. Lyon company, 1921
    Holding Institution: University of California Libraries
    Subjects: Fruit-culture  Pear  
  25. By: Hedrick, Ulysses Prentiss, - Howe, G. H. - New York (State). Dept. of Agriculture. - New York State Agricultural Experiment Station.
    Publication info: Albany, J.B. Lyon Co, 1921
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Fruit-culture  New York (State)  Pear  
  26. By: Magness, J. R. (John Robert),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1922
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Handling  Pacific States  Pear  Storage  Transportation  
  27. By: Diehl, H. C. (Helmut Charles),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1928
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Pear  Residues  
  28. By: Borden, Arthur D. (Arthur Dickie),
    Publication info: Berkeley, Calif, University of California, College of Agriculture, Agricultural Experiment Station, 1932
    Holding Institution: University of California, Davis Libraries
    Subjects: Apples  California  Diseases and pests  Eriophyes  Pear  
  29. By: Rose, Dean H. (Dean Humboldt), - Brooks, Charles, - Bratley, C. O. (Cyril Oliver),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1933
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Diseases and pests  Pear  Quince  
  30. By: Roberts, John W. (John William), - United States. Agricultural Research Service.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, [1939?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Diseases and pests  Fire-blight  Pear  Quince  United States  
  31. By: Racicot, H. N. - Canada. Department of Agriculture.
    Publication info: Ottawa, Dept. of Agriculture, 1940
    Holding Institution: Agriculture and Agri-Food Canada (AAFC)
    Subjects: Apples  Diseases and pests  Fire-blight  Pear
  32. By: Hendrickson, A. H. (Arthur Howard), - Veihmeyer, Frank J.,
    Publication info: Berkeley, Cal, Agricultural Experiment Station, 1942
    Holding Institution: University of California, Davis Libraries
    Subjects: Apples  California  Field experiments  Irrigation  Pear  
  33. By: Hukill, W. V. (William Virgil), - Smith, Edwin,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1946
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Cold storage  Pear  Storage  
  34. By: Rose, Dean H. (Dean Humboldt), - McColloch, Lacy Porter, - Fisher, D. F.
    Edition: Rev. Nov. 1951.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1951
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Diseases and pests  Pear  Quince  
  35. By: Dunegan, John C. (John Clymer), - United States. Agricultural Research Service.
    Edition: Rev. Sep. 1954.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, [1954]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Diseases and pests  Fire-blight  Pear  Quince  United States  
  36. By: Gerhardt, Fisk,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, [1955]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Pear  Storage  
  37. By: Sainsbury, G. F. (George F.),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Agricultural Marketing Service, Transportation and Facilities Research Division, 1961
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Cooling  Pear  
  38. By: Fountain, James B. (James Brian),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Agricultural Marketing Service, Transportation and Facilities Research Division, 1962
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Oregon  Packing  Pear  Washington (State)  
  39. By: United States. Agricultural Research Service. Crops Research Division.
    Edition: Rev. Oct. 1970.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, [1970]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Diseases and pests  Fire-blight  Pear  Quince  United States  
  40. By: Patchen, Glenn O. - United States. Agricultural Research Service.
    Publication info: Washington, U.S. Govt. Print. Off, 1971
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Pear  Storage  
  41. By: United States. Agricultural Research Service.
    Edition: Revised February 1972.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1972
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Diseases and pests  Fire-blight  Pear  Quince  United States  
  42. By: Worthington, John T. (John Thomas), - United States. Science and Education Administration. Agricultural Research. Northeastern Region.
    Publication info: Beltsville, Md, Agricultural Research (Northeastern Region), Science and Education Administration, U.S. Dept. of Agriculture, [1980]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Fruit  Pear  Quality  
  43. By: Williams, Max W. - Edgerton, Louis J.
    Edition: Rev. Sept. 1981.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Science and Education Administration, 1981
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Fruit thinning  Pear  
  44. By: O'Brien, James T. - Snowden, Parker. - United States. State and Private Forestry. Northeastern Area.
    Edition: Rev. 5/89.
    Publication info: [Broomall, Pa.?], U.S. Dept. of Agriculture, Forest Service, Northeastern Area, 1989
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Diseases and pests  Northeastern States  Pear  Pear thrips  Trees  
  45. By: International Society for Horticultural Science. Working Group on Fireblight Research. - European and Mediterranean Plant Protection Organisation. - Agricultural Research Center (Beltsville, Md.) - Appalachian Fruit Research Station (Kearneysville, W. Va.)
    Publication info: Beltsville, Md, United States Dept. of Agriculture, Science & Education Administration, Agricultural Research Center, 1979-
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Apples  Diseases and pests  Fire-blight  Pear  Periodicals  Plants, Protection of  Research  
  46. By: Meheriuk, M. (Michael), - Canada. Agriculture and Agri-Food Canada.
    Edition: Rev. 1994
    Publication info: Ottawa, Agriculture and Agri-Food Canada, 1994
    Holding Institution: Agriculture and Agri-Food Canada (AAFC)
    Subjects: Apples  Canada  Diseases and pests  Pear