(1995). Cambridge certificate in advanced English ( Student's book with answers ). Cambridge, UK: Cambridge Univ. Press.
Chicago Style aipamenaCambridge Certificate in Advanced English ( Student's Book With Answers ). Cambridge, UK: Cambridge Univ. Press, 1995.
MLA aipamenaCambridge Certificate in Advanced English ( Student's Book With Answers ). Cambridge, UK: Cambridge Univ. Press, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.