APA (7th ed.) Citation

Perkins, L. F. (1946). The Irish twins. J. Cape.

Chicago Style (17th ed.) Citation

Perkins, Lucy Fitch. The Irish Twins. London: J. Cape, 1946.

MLA (9th ed.) Citation

Perkins, Lucy Fitch. The Irish Twins. J. Cape, 1946.

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