APA (7th ed.) Citation

Payawal, P. C., Esmundo, R. R., & Pagulayan, R. C. (1999). Life and the planet earth. Learning Resource Center, University of the Philippines.

Chicago Style (17th ed.) Citation

Payawal, Pacifico C., Rosalinda R. Esmundo, and Roberto C. Pagulayan. Life and the Planet Earth. Quezon City: Learning Resource Center, University of the Philippines, 1999.

MLA (9th ed.) Citation

Payawal, Pacifico C., et al. Life and the Planet Earth. Learning Resource Center, University of the Philippines, 1999.