APA aipamena

Leo Jones. (2001). New progress to proficiency (student's book). Cambridge: Cambridge Univ. Press.

Chicago Style aipamena

Leo Jones. New Progress to Proficiency (student's Book). Cambridge: Cambridge Univ. Press, 2001.

MLA aipamena

Leo Jones. New Progress to Proficiency (student's Book). Cambridge: Cambridge Univ. Press, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.