APA aipamena

(2008). Lingua forum TOEFL Ibt I speaking (Hight Intermediate Course).

Chicago Style aipamena

Lingua Forum TOEFL Ibt I Speaking (Hight Intermediate Course). 2008.

MLA aipamena

Lingua Forum TOEFL Ibt I Speaking (Hight Intermediate Course). 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.