APA aipamena

Blass, L. (2007). Quest: Listening and speaking. Boston: McGraw-Hill.

Chicago Style aipamena

Blass, Laurie. Quest: Listening and Speaking. Boston: McGraw-Hill, 2007.

MLA aipamena

Blass, Laurie. Quest: Listening and Speaking. Boston: McGraw-Hill, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.