APA (7th ed.) Citation

Poblador, H., Amorsolo, F. C., Cayco, F., & Osias, C. (1932). Philippine arithmetics. Worldbook.

Chicago Style (17th ed.) Citation

Poblador, Honorio, F. C. Amorsolo, Florentino Cayco, and Camilo Osias. Philippine Arithmetics. Yonkers-on-Hudson, N.Y and Manila: Worldbook, 1932.

MLA (9th ed.) Citation

Poblador, Honorio, et al. Philippine Arithmetics. Worldbook, 1932.