APA aipamena

George John. IELTS&TOFEL made easy (10th.). George John.

Chicago Style aipamena

George John. IELTS&TOFEL Made Easy. 10th. George John.

MLA aipamena

George John. IELTS&TOFEL Made Easy. 10th. George John.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.