Cita APA (7th ed.)

Hill, D. S., & Waller, J. M. (1990). Pests and diseases of tropical crops: Field handbook. Longman.

Cita Chicago (17th ed.)

Hill, Dennis S., i J. M. Waller. Pests and Diseases of Tropical Crops: Field Handbook. London: Longman, 1990.

Cita MLA (9th ed.)

Hill, Dennis S., i J. M. Waller. Pests and Diseases of Tropical Crops: Field Handbook. Longman, 1990.