APA aipamena

Penn, J. (2009). Family and friends teacher's book 1. Oxford University Press.

Chicago Style aipamena

Penn, Julie. Family and Friends Teacher's Book 1. Oxford University Press, 2009.

MLA aipamena

Penn, Julie. Family and Friends Teacher's Book 1. Oxford University Press, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.