APA aipamena

Muller, P. (1972). The friendly friends. Hale.

Chicago Style aipamena

Muller, Paul. The Friendly Friends. London: Hale, 1972.

MLA aipamena

Muller, Paul. The Friendly Friends. Hale, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.