APA aipamena

Barraclough, C. (2008). Activate! B1: Workbook. Pearson Education limited: England.

Chicago Style aipamena

Barraclough, Carolyn. Activate! B1: Workbook. Pearson Education limited: England, 2008.

MLA aipamena

Barraclough, Carolyn. Activate! B1: Workbook. Pearson Education limited: England, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.