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  1. By: Duvel, J. W. T.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1915
    Holding Institution: Multiple institutions
  2. By: Duvel, J. W. T. - Hedgcock, George G. (George Grant), - Von Schrenk, Hermann, - Shear, C. L. (Cornelius Lott),
    Publication info: Washington, Government Printing Office, 1907
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Duvel, J. W. T. - Duval, Laurel,
    Publication info: [Washington, Govt. print. off.], 1913
    Holding Institution: Library of Congress
  4. By: Duvel, J. W. T. - Duval, Laurel.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1913
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  5. By: Selby, A. D. (Augustine Dawson), - Duvel, J. W. T.
    Publication info: Columbus, 1899
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
  6. By: Duvel, J. W. T. - Hoffman, G. Wright (George Wright), - United States. Grain Futures Administration.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1927
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  7. By: Duvel, J. W. T.
    Publication info: Washington, 1906
    Holding Institution: Library of Congress
  8. By: Duvel, J. W. T.
    Publication info: Ann Arbor? Mich, 1904?
    Holding Institution: Library of Congress
  9. By: Duvel, J. W. T.
    Publication info: Washington, Govt. Print. Off, 1904
    Holding Institution: Library of Congress
  10. By: Duvel, J. W. T.
    Publication info: Washington, Govt. Print. Off, 1905
    Holding Institution: Smithsonian Libraries and Archives