APA (7th ed.) Zitazioa

Forster, E. M. (1920). Where angels fear to tread. A. A. Knopf.

Chicago Style (17th ed.) Zitazioa

Forster, Edward Morgan. Where Angels Fear to Tread. New York: A. A. Knopf, 1920.

MLA (9th ed.) Zitazioa

Forster, Edward Morgan. Where Angels Fear to Tread. A. A. Knopf, 1920.