Cita APA (7a ed.)

Youngner, V. (1972). The Biology and utilization of grasses (1st edition.). Academic Press.

Cita Chicago Style (17a ed.)

Youngner, V.B. The Biology and Utilization of Grasses. 1st edition. London: Academic Press, 1972.

Cita MLA (8a ed.)

Youngner, V.B. The Biology and Utilization of Grasses. 1st edition. Academic Press, 1972.