Lisboa, M., & Handford, M. (2012). Business advantage: Advanced - student's book. Cambridge: Cambridge University Press.
Chicago Style aipamenaLisboa, Martin., và Michael Handford. Business Advantage: Advanced - Student's Book. Cambridge: Cambridge University Press, 2012.
MLA aipamenaLisboa, Martin., và Michael Handford. Business Advantage: Advanced - Student's Book. Cambridge: Cambridge University Press, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.