APA aipamena

Jones, L. (1991). Progress to proficiency: Teacher's book. Cambridge: Cambridge University Press.

Chicago Style aipamena

Jones, Leo. Progress to Proficiency: Teacher's Book. Cambridge: Cambridge University Press, 1991.

MLA aipamena

Jones, Leo. Progress to Proficiency: Teacher's Book. Cambridge: Cambridge University Press, 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.