Jeremy Comford. (1997). Effective socializing (Teacher's book). Oxford: Oxford Univ. Press.
Chicago Style aipamenaJeremy Comford. Effective Socializing (Teacher's Book). Oxford: Oxford Univ. Press, 1997.
MLA aipamenaJeremy Comford. Effective Socializing (Teacher's Book). Oxford: Oxford Univ. Press, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.