Tricia Aspinall. (1999). Advanced masterclass CAE (Student's book). Oxford: Oxford Univ. Press.
Chicago Style aipamenaTricia Aspinall. Advanced Masterclass CAE (Student's Book). Oxford: Oxford Univ. Press, 1999.
MLA aipamenaTricia Aspinall. Advanced Masterclass CAE (Student's Book). Oxford: Oxford Univ. Press, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.