APA aipamena

(2002). Market Leader ( Upper - Intermediate). Pearson & Longman.

Chicago Style aipamena

Market Leader ( Upper - Intermediate). Pearson & Longman, 2002.

MLA aipamena

Market Leader ( Upper - Intermediate). Pearson & Longman, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.