APA (7th ed.) Zitazioa
Browning, P. (1999). European aids directory: 1999/2000 (6. ed.). NAM Publications.
Chicago Style (17th ed.) Zitazioa
Browning, Philip. European Aids Directory: 1999/2000. 6. ed. London: NAM Publications, 1999.
MLA (9th ed.) Zitazioa
Browning, Philip. European Aids Directory: 1999/2000. 6. ed. NAM Publications, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.