APA aipamena

(2011).  Market leader: Upper intermediate business english course book.  Pearson.

Chicago Style aipamena

 Market Leader: Upper Intermediate Business English Course Book.  Pearson, 2011.

MLA aipamena

 Market Leader: Upper Intermediate Business English Course Book.  Pearson, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.