Abbs, B. (2004). New Snapshot Intermediate Student's Book. Longman.
Chicago Style aipamenaAbbs, Brian. New Snapshot Intermediate Student's Book. Longman, 2004.
MLA aipamenaAbbs, Brian. New Snapshot Intermediate Student's Book. Longman, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.