APA aipamena

Thorpe, E. (2009). Objective english (3rd. ed.). Pearson.

Chicago Style aipamena

Thorpe, Edgar. Objective English. 3rd. ed. Chandigarh: Pearson, 2009.

MLA aipamena

Thorpe, Edgar. Objective English. 3rd. ed. Pearson, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.