APA (7th ed.) Citation

Knorr, D. W. (1983). Sustainable food systems. AVI Pub. Co..

Chicago Style (17th ed.) Citation

Knorr, Dietrich W. Sustainable Food Systems. Westport, Conn.: AVI Pub. Co., 1983.

MLA (9th ed.) Citation

Knorr, Dietrich W. Sustainable Food Systems. AVI Pub. Co., 1983.