APA (7th ed.) Citation

Wijewardene, R., & Waidyanatha, P. (1989). Coservation farming. Marya Publications.

Chicago Style (17th ed.) Citation

Wijewardene, Ray, and Parakrama Waidyanatha. Coservation Farming. Colombo: Marya Publications, 1989.

MLA (9th ed.) Citation

Wijewardene, Ray, and Parakrama Waidyanatha. Coservation Farming. Marya Publications, 1989.

Warning: These citations may not always be 100% accurate.