APA (7th ed.) Citation

United States. Office of War Information, Bulosan, C., Camp, W. M., Ind, A., Merrill, J., & Romulo, C. P. Philippine omnibook. s.n.

Chicago Style (17th ed.) Citation

United States. Office of War Information, Carlos Bulosan, William Martin Camp, Allison Ind, John Merrill, and Carlos Pena Romulo. Philippine Omnibook. [S.l: s.n.

MLA (9th ed.) Citation

United States. Office of War Information, et al. Philippine Omnibook. s.n.

Warning: These citations may not always be 100% accurate.