Spencer, D. A. (1974). The National Pesticide Monitoring Program: An overview of the first ten years of the program's operation. National Agricultural Chemicals Association.
Chicago Style (17th ed.) CitationSpencer, Donald A. The National Pesticide Monitoring Program: An Overview of the First Ten Years of the Program's Operation. Washington: National Agricultural Chemicals Association, 1974.
MLA (9th ed.) CitationSpencer, Donald A. The National Pesticide Monitoring Program: An Overview of the First Ten Years of the Program's Operation. National Agricultural Chemicals Association, 1974.
Warning: These citations may not always be 100% accurate.