APA (7th ed.) Zitazioa
STIMMEL, B. INTRAVENOUS DRUG USE, METHADONE, AND AIDS: ASK NOT FOR WHOM THE BELL TOLLS.
Chicago Style (17th ed.) Zitazioa
STIMMEL, B. INTRAVENOUS DRUG USE, METHADONE, AND AIDS: ASK NOT FOR WHOM THE BELL TOLLS.
MLA (9th ed.) Zitazioa
STIMMEL, B. INTRAVENOUS DRUG USE, METHADONE, AND AIDS: ASK NOT FOR WHOM THE BELL TOLLS.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.