APA (7th ed.) Citation

GONZALES, G. A., & AGUILAR, R. O. (2001). Aquatic Ecosystems (2nd. printing. Revis. ed.). University of the Philippines. Open University.

Chicago Style (17th ed.) Citation

GONZALES, Gaudiosa A., and Riza O. AGUILAR. Aquatic Ecosystems. 2nd. printing. Revis. ed. Quezon City: University of the Philippines. Open University, 2001.

MLA (9th ed.) Citation

GONZALES, Gaudiosa A., and Riza O. AGUILAR. Aquatic Ecosystems. 2nd. printing. Revis. ed. University of the Philippines. Open University, 2001.