APA aipamena

David Foll. (1997). Fisrt certificate avenues workbook. Cambridge, UK: Cambridge Univ. Press.

Chicago Style aipamena

David Foll. Fisrt Certificate Avenues Workbook. Cambridge, UK: Cambridge Univ. Press, 1997.

MLA aipamena

David Foll. Fisrt Certificate Avenues Workbook. Cambridge, UK: Cambridge Univ. Press, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.