Engler, K., & Swanson, J. C. (1990). Animal welfare legislation and regulation: January 1979-August 1989. U.S. Dept. of Agriculture, National Agricultural Library.
Chicago Style (17th ed.) CitationEngler, Kevin, and Janice C. Swanson. Animal Welfare Legislation and Regulation: January 1979-August 1989. Beltsville, Md.: U.S. Dept. of Agriculture, National Agricultural Library, 1990.
MLA (9th ed.) CitationEngler, Kevin, and Janice C. Swanson. Animal Welfare Legislation and Regulation: January 1979-August 1989. U.S. Dept. of Agriculture, National Agricultural Library, 1990.
Warning: These citations may not always be 100% accurate.