APA (7th ed.) Zitazioa
ABRAHAM, D., & ET AL. (2000). SEROPREVALENCE OF HEPATITIS C IN A SAMPLE OF MIDDLE CLASS SUBSTANCE ABUSERS.
Chicago Style (17th ed.) Zitazioa
ABRAHAM, D.A, eta ET AL. SEROPREVALENCE OF HEPATITIS C IN A SAMPLE OF MIDDLE CLASS SUBSTANCE ABUSERS. 2000.
MLA (9th ed.) Zitazioa
ABRAHAM, D.A, eta ET AL. SEROPREVALENCE OF HEPATITIS C IN A SAMPLE OF MIDDLE CLASS SUBSTANCE ABUSERS. 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.