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  1. By: Clark, J. Allen (Jacob Allen), - Stephens, David E. (David Edmund), - Florell, Victor H. (Victor Homer),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Clark, J. Allen (Jacob Allen),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1914
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: United States. Bureau of Plant Industry. - Ball, Carleton R. (Carleton Roy), - Martin, John H. - Clark, J. Allen (Jacob Allen),
    Publication info: Washington, U.S. G.P.O, 1923
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  4. By: Clark, J. Allen (Jacob Allen), - Ball, Carleton R. (Carleton Roy), - Martin, John H.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1922
    Holding Institution: Multiple institutions
  5. By: Clark, J. Allen (Jacob Allen),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1929
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  6. By: Ball, Carleton R. (Carleton Roy), - Clark, J. Allen (Jacob Allen),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1918
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  7. By: Ball, Carleton R. (Carleton Roy), - Clark, J. Allen (Jacob Allen),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1916
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  8. By: Clark, J. Allen (Jacob Allen),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1916
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  9. By: Smith, Ralph W. (Ralph Waldo), - Waldron, Lawrence Root, - Clark, J. Allen (Jacob Allen),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1923
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  10. By: Shollenberger, J. H. (Joseph Heilman), - Clark, J. Allen (Jacob Allen),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1924
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  11. By: Clark, J. Allen (Jacob Allen), - Hooker, John R. (John Robert),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1926
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  12. By: Clark, J. Allen (Jacob Allen), - Martin, John H. (John Holmes),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1925
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  13. By: Clark, J. Allen (Jacob Allen), - Martin, John H. (John Holmes), - Smith, Ralph W. (Ralph Waldo),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library