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  1. 1
    by Jacks, Harry, 1909-1994
    Published 1954
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    A guide to correct use of plant protection methods /
  2. 2
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    Hungry planet : stories of plant diseases /
  3. 3
    by De Ong, Elmer Ralph, 1882-
    Published 1972
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    Insect, disease and weed control : [By] E.R. De Ong, D. Bishop [and] J.L. Bishop, Jr.
  4. 4
    Published 1993
    Book
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    Plant protection : costs, benefits and trade implications : proceedings of a New Zealand Plant Protection Society symposium : Russley Hotel, Christchurch, New Zealand, 1993 /

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