Showing 1 - 13 results of 13 for search 'Campbell, Roy Elliott', query time: 0.19s Refine Results
  1. 1
    Nicotine sulphate in a dust carrier against truck-crop insects /
    by Campbell, Roy Elliott
    Published 1921

    Government Document Book
  2. 2
    The broad-bean weevil /
    by Campbell, Roy Elliott
    Published 1920

    Government Document Book
  3. 3
    Nicotine sulphate in a dust carrier against truck-crop insects /
    by Campbell, Roy Elliott
    Published 1921

    Book
  4. 4
    The broad-bean weevil /
    by Campbell, Roy Elliott
    Published 1920

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Book
  5. 5
    The pea aphis in California ..
    by Campbell, Roy Elliott
    Published 1926

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Book
  6. 6
    Nicotine sulphate in a dust carrier against truck-crop insects /
    by Campbell, Roy Elliott
    Published 1921

    Book
  7. 7
    Nicotine dust for control of truck-crop insects /
    by Campbell, Roy Elliott
    Published 1922

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Book
  8. 8
    Pea aphis in California,
    by Campbell, Roy Elliott
    Published 1925

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Thesis Book Chapter
  9. 9
    The broad-bean weevil /
    by Campbell, Roy Elliott
    Published 1920

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Book
  10. 10
    Nicotine dust for control of truck-crop insects /
    by Campbell, Roy Elliott, 1890-
    Published 1922

    Government Document Book
  11. 11
    The pepper weevil
    Other Authors: “...Campbell, Roy Elliott, 1890-...”

    Book
  12. 12
    Investigations of the tomato fruitworm : its seasonal history and methods of control /
    by Wilcox, Joseph, 1901-1982
    Published 1956
    Other Authors: “...Campbell, Roy Elliott...”

    Government Document Book
  13. 13
    The pepper weevil /
    Other Authors: “...Campbell, Roy Elliott...”

    Government Document Book
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