APA (7th ed.) Citation

Perkins, L. F. (1949). The Filipino Twins. Jonathan Cape.

Chicago Style (17th ed.) Citation

Perkins, Lucy Fitch. The Filipino Twins. London: Jonathan Cape, 1949.

MLA (9th ed.) Citation

Perkins, Lucy Fitch. The Filipino Twins. Jonathan Cape, 1949.

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