APA (7th ed.) Citation

Hart, D. V., Wilson, H. E., & Igarta, V. C. (1946). The Philippines. American Book Company.

Chicago Style (17th ed.) Citation

Hart, Donn V., Howard Eugene Wilson, and Venancio C. Igarta. The Philippines. New York ...: American Book Company, 1946.

MLA (8th ed.) Citation

Hart, Donn V., et al. The Philippines. American Book Company, 1946.