APA aipamena

Rogers, J. (2004). Market leader: Practice file. England: Longman.

Chicago Style aipamena

Rogers, John. Market Leader: Practice File. England: Longman, 2004.

MLA aipamena

Rogers, John. Market Leader: Practice File. England: Longman, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.