APA (7th ed.) Citation

Gonzales, G. A., & Aguilar, R. O. (2001). Aquatic ecosystems. UP Open University.

Chicago Style (17th ed.) Citation

Gonzales, Gaudiosa A., and Riza O. Aguilar. Aquatic Ecosystems. Diliman, Quezon City: UP Open University, 2001.

MLA (9th ed.) Citation

Gonzales, Gaudiosa A., and Riza O. Aguilar. Aquatic Ecosystems. UP Open University, 2001.