Cita APA

Cobley, L. S., & Steele, W. M. (1976). An introduction to the botany of tropical crops (2. edition.). London: Longman.

Citación estilo Chicago

Cobley, Leslie S., y W. M. Steele. An Introduction to the Botany of Tropical Crops. 2. edition. London: Longman, 1976.

Cita MLA

Cobley, Leslie S., y W. M. Steele. An Introduction to the Botany of Tropical Crops. 2. edition. London: Longman, 1976.