APA (7th ed.) Zitazioa

Fry, C. (1954). The dark is light enough: A winter comedy. Oxford University Pr..

Chicago Style (17th ed.) Zitazioa

Fry, Christopher. The Dark Is Light Enough: A Winter Comedy. London: Oxford University Pr., 1954.

MLA (9th ed.) Zitazioa

Fry, Christopher. The Dark Is Light Enough: A Winter Comedy. Oxford University Pr., 1954.