APA aipamena

Cotton, D. (2005). Market leader: Course book : Upper intermediate business english. England: Longman.

Chicago Style aipamena

Cotton, David. Market Leader: Course Book : Upper Intermediate Business English. England: Longman, 2005.

MLA aipamena

Cotton, David. Market Leader: Course Book : Upper Intermediate Business English. England: Longman, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.