APA aipamena

Williams, S. (2003). Berlitz intermediate German (CD ed.). Berlitz Pub./APA Publications.

Chicago Style aipamena

Williams, Steve. Berlitz Intermediate German. CD ed. Singapore: Berlitz Pub./APA Publications, 2003.

MLA aipamena

Williams, Steve. Berlitz Intermediate German. CD ed. Berlitz Pub./APA Publications, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.