APA引文

Rivero, G. O. C., & Cao, E. P. (2000). Biology: A study guide. Office of Academic Support and Instructional Services, UP Open University.

Chicago Style (17th ed.) Citation

Rivero, Gilda O. Carballo, and Ernelea P. Cao. Biology: A Study Guide. Quezon City: Office of Academic Support and Instructional Services, UP Open University, 2000.

MLA引文

Rivero, Gilda O. Carballo, and Ernelea P. Cao. Biology: A Study Guide. Office of Academic Support and Instructional Services, UP Open University, 2000.