APA (7th ed.) Citation

Perkins, L. (1951). The Filipino twins. Houghton Mifflin Company.

Chicago Style (17th ed.) Citation

Perkins, Lucy. The Filipino Twins. Boston and New York: Houghton Mifflin Company, 1951.

MLA (9th ed.) Citation

Perkins, Lucy. The Filipino Twins. Houghton Mifflin Company, 1951.