APA citiranje

Rivero, G. O. C., & Cao, E. P. (2005). Biology: A study guide (2nd ed.). University of the Philippines Open University.

Chicago Style (17th ed.) Citation

Rivero, Gilda O. Carballo, and Ernelea Palo Cao. Biology: A Study Guide. 2nd ed. Quezon City: University of the Philippines Open University, 2005.

MLA citiranje

Rivero, Gilda O. Carballo, and Ernelea Palo Cao. Biology: A Study Guide. 2nd ed. University of the Philippines Open University, 2005.

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