Cita APA (7a ed.)

Sparks, D. L. (1993). Advances in agronomy. Academic Press.

Cita Chicago Style (17a ed.)

Sparks, Donald L. Advances in Agronomy. San Diego: Academic Press, 1993.

Cita MLA (8a ed.)

Sparks, Donald L. Advances in Agronomy. Academic Press, 1993.