APA aipamena

Beatty, K. (2005). Go for it !: Workbook. Boston. MA: Thomson Heinle.

Chicago Style aipamena

Beatty, Ken. Go for It !: Workbook. Boston. MA: Thomson Heinle, 2005.

MLA aipamena

Beatty, Ken. Go for It !: Workbook. Boston. MA: Thomson Heinle, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.