Cita APA (7a ed.)
Cablayan, D., & Valera, A. (1987). Irrigated diversified cropping constraints in the Philippines: A preliminary study.
Cita Chicago Style (17a ed.)
Cablayan, D., y A. Valera. Irrigated Diversified Cropping Constraints in the Philippines: A Preliminary Study. 1987.
Cita MLA (9a ed.)
Cablayan, D., y A. Valera. Irrigated Diversified Cropping Constraints in the Philippines: A Preliminary Study. 1987.
Precaución: Estas citas no son 100% exactas.