APA (7th ed.) Zitazioa
Cooper, B. (1996). European aids directory (3. ed.). NAM Publications.
Chicago Style (17th ed.) Zitazioa
Cooper, Brian. European Aids Directory. 3. ed. London: NAM Publications, 1996.
MLA (9th ed.) Zitazioa
Cooper, Brian. European Aids Directory. 3. ed. NAM Publications, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.