APA Citatie

Donahue, R. L., & Evans, E. F. (1973). Exploring agriculture: An introduction to food and agriculture. Prentice -Hall Inc.

Chicago Style citaat

Donahue, Roy L., en Everett F. Evans. Exploring Agriculture: An Introduction to Food and Agriculture. U S A: Prentice -Hall Inc, 1973.

MLA citatie

Donahue, Roy L., en Everett F. Evans. Exploring Agriculture: An Introduction to Food and Agriculture. Prentice -Hall Inc, 1973.