Cita APA (7a ed.)

Cobley, L. S. (1956). An introduction to the botany of tropical crops. Longman.

Cita Chicago Style (17a ed.)

Cobley, Leslie S. An Introduction to the Botany of Tropical Crops. London: Longman, 1956.

Cita MLA (8a ed.)

Cobley, Leslie S. An Introduction to the Botany of Tropical Crops. Longman, 1956.