APA (7th ed.) Citation

Purdue University. Cooperative Extension Service. (1997). Food system 21: Gearing up for the new milennium. Purdue University Cooperative Extension Service.

Chicago Style (17th ed.) Citation

Purdue University. Cooperative Extension Service. Food System 21: Gearing Up for the New Milennium. West Lafayette, Ind.: Purdue University Cooperative Extension Service, 1997.

MLA (9th ed.) Citation

Purdue University. Cooperative Extension Service. Food System 21: Gearing Up for the New Milennium. Purdue University Cooperative Extension Service, 1997.