APA (7th ed.) Citation

Colayco, C. J., Gonzalez, M. O., & Santamaria, M. G. (1958). Viewing the world of letters. U.S.T. Cooperative.

Chicago Style (17th ed.) Citation

Colayco, Clemencia J., Milagros O. Gonzalez, and Mercedes G. Santamaria. Viewing the World of Letters. [Manila]: U.S.T. Cooperative, 1958.

MLA (9th ed.) Citation

Colayco, Clemencia J., et al. Viewing the World of Letters. U.S.T. Cooperative, 1958.