APA aipamena

Birkin, J. (2012). Business advantage: Advanced - Teacher's book. Cambridge: Cambridge University Press.

Chicago Style aipamena

Birkin, Jonathan. Business Advantage: Advanced - Teacher's Book. Cambridge: Cambridge University Press, 2012.

MLA aipamena

Birkin, Jonathan. Business Advantage: Advanced - Teacher's Book. Cambridge: Cambridge University Press, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.