APA (7th ed.) Zitazioa
(1990). SPECIAL ISSUE ON HIV INFECTION AND AIDS.
Chicago Style (17th ed.) Zitazioa
SPECIAL ISSUE ON HIV INFECTION AND AIDS. 1990.
MLA (9th ed.) Zitazioa
SPECIAL ISSUE ON HIV INFECTION AND AIDS. 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.