Cita APA (7a ed.)

Horrocks, R. D., & Vallentine, J. F. (1999). Harvested forages. Academic Press.

Cita Chicago Style (17a ed.)

Horrocks, R. Dwain, y John F. Vallentine. Harvested Forages. San Diego, Calif.: Academic Press, 1999.

Cita MLA (8a ed.)

Horrocks, R. Dwain, y John F. Vallentine. Harvested Forages. Academic Press, 1999.