APA (7th ed.) Citation

Sangatanan, P. D., & Sangatanan, R. L. (1990). Soil management. Rex Book Store.

Chicago Style (17th ed.) Citation

Sangatanan, Pedro D., and Rone L. Sangatanan. Soil Management. Manila: Rex Book Store, 1990.

MLA (9th ed.) Citation

Sangatanan, Pedro D., and Rone L. Sangatanan. Soil Management. Rex Book Store, 1990.

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