APA (7th ed.) Citation

De Leon, J., & Yonzon, E. C. (1937). Citrus growing in the Philippines. Bureau of Print.

Chicago Style (17th ed.) Citation

De Leon, Jose, and Emilia C. Yonzon. Citrus Growing in the Philippines. Manila: Bureau of Print, 1937.

MLA (9th ed.) Citation

De Leon, Jose, and Emilia C. Yonzon. Citrus Growing in the Philippines. Bureau of Print, 1937.