Search results for: Ryan, Stephen O.

Showing 1 - 5 results of 5 Refine Results
  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 1B : Agricultural Insect Control

    Authors: Stockdale, Harold J., Ryan, Stephen O.
    Published: Distributed by ERIC Clearinghouse, 1976
    Physical Description: 21 pages
    Microfilm Book
  3. 3

    Iowa Commercial Pesticide Applicator Manual, Category 1C : Agricultural Crop Disease Control. CS-11

    Authors: Nyvall, Robert F., Ryan, Stephen O.
    Published: Distributed by ERIC Clearinghouse, 1976
    Physical Description: 38 pages
    Microfilm Book
  4. 4

    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
  5. 5

    Iowa Commercial Pesticide Applicator Manual, Category 1E : Animal Pest Control. CS-13

    Authors: DeWitt, Jerald R., Ryan, Stephen O.
    Published: Distributed by ERIC Clearinghouse, 1976
    Physical Description: 10 pages
    Microfilm Book