APA (7th ed.) Zitazioa

Osborne, J. (1963). Under plain cover: A play in one act. faber.

Chicago Style (17th ed.) Zitazioa

Osborne, John. Under Plain Cover: A Play in One Act. London: faber, 1963.

MLA (9th ed.) Zitazioa

Osborne, John. Under Plain Cover: A Play in One Act. faber, 1963.