APA (7th ed.) Citation

Gates, J. P., & National Agricultural Library (U.S.). (1991). Organic certification. National Agricultural Library.

Chicago Style (17th ed.) Citation

Gates, Jane Potter., and National Agricultural Library (U.S.). Organic Certification. Beltsville, Md.: National Agricultural Library, 1991.

MLA (8th ed.) Citation

Gates, Jane Potter., and National Agricultural Library (U.S.). Organic Certification. National Agricultural Library, 1991.