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Please read BHL's Acknowledgment of Harmful Content
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  1. By: United States. Department of Agriculture.
    Publication info: Washington, 1966?
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Insect pests  Pesticides  Policies and programs  United States  
  2. By: United States. Agricultural Research Service.
    Publication info: [Washington, U.S. Govt. Print. Off.], 1967
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Agricultural Research Service  Insect pests  Plant Pest Control Division  Policies and programs  United States