Krantz, C. (2007). New headway: Pre - Intermediate : Teacher's resource book (3rd ed.). Oxford: Oxford Univ. Press.
Chicago Style aipamenaKrantz, Caroline. New Headway: Pre - Intermediate : Teacher's Resource Book. 3rd ed. Oxford: Oxford Univ. Press, 2007.
MLA aipamenaKrantz, Caroline. New Headway: Pre - Intermediate : Teacher's Resource Book. 3rd ed. Oxford: Oxford Univ. Press, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.