APA aipamena

Collie, j. (2005). Speaking 4 student's book. Kanisius.

Chicago Style aipamena

Collie, joanne. Speaking 4 Student's Book. Kanisius, 2005.

MLA aipamena

Collie, joanne. Speaking 4 Student's Book. Kanisius, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.