Search results for: Jennings, Vivan M.

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  1. 1

    Iowa Commercial Pesticide Applicator Manual, Category 1A : Agricultural Weed Control

    Authors: Jennings, Vivan M., Ryan, Stephen O.
    Published: Distributed by ERIC Clearinghouse, 1976
    Physical Description: 63 pages
    Microfilm Book
  2. 2

    Iowa Commercial Pesticide Applicator Manual, Category 5 : Aquatic Pest Control. CS-17

    Authors: Jennings, Vivan M., Ryan, Stephen O.
    Published: Distributed by ERIC Clearinghouse, 1976
    Physical Description: 16 pages
    Microfilm Book
  3. 3

    Iowa Commercial Pesticide Applicator Manual, Category 6 : Right-of-Way Pest Control. CS-18

    Authors: Jennings, Vivan M., Ryan, Stephan O.
    Published: Distributed by ERIC Clearinghouse, 1976
    Physical Description: 23 pages
    Microfilm Book