APA (7th ed.) Citation

Pascual, E., De Leon, A. S., & Jacobo, M. E. (1974). Science I: Physical concepts for first year. Philippine Book.

Chicago Style (17th ed.) Citation

Pascual, Elena, Adela S. De Leon, and M. E. Jacobo. Science I: Physical Concepts for First Year. Manila: Philippine Book, 1974.

MLA (9th ed.) Citation

Pascual, Elena, et al. Science I: Physical Concepts for First Year. Philippine Book, 1974.