Cita APA (7a ed.)

Zimdahl, R. L. (2006). Agriculture's ethical horizon. Academic Press.

Cita Chicago Style (17a ed.)

Zimdahl, Robert L. Agriculture's Ethical Horizon. Amsterdam ; Boston: Academic Press, 2006.

Cita MLA (8a ed.)

Zimdahl, Robert L. Agriculture's Ethical Horizon. Academic Press, 2006.