APA (7th ed.) Zitazioa

Oppenheim, J., & Reid, B. (1986). Have you seen birds? North Winds Press.

Chicago Style (17th ed.) Zitazioa

Oppenheim, Joanne, eta Bárbara Reid. Have You Seen Birds? Ottawa: North Winds Press, 1986.

MLA (9th ed.) Zitazioa

Oppenheim, Joanne, eta Bárbara Reid. Have You Seen Birds? North Winds Press, 1986.