APA (7th ed.) Zitazioa
FERRI, C., & ET AL. (2002). DIFFERENCES IN FACTORS ASSOCIATED WITH FIRST TREATMENT ENTRY AND TREATMENT RE-ENTRY AMONG COCAINE USERS.
Chicago Style (17th ed.) Zitazioa
FERRI, C.P, eta ET AL. DIFFERENCES IN FACTORS ASSOCIATED WITH FIRST TREATMENT ENTRY AND TREATMENT RE-ENTRY AMONG COCAINE USERS. 2002.
MLA (9th ed.) Zitazioa
FERRI, C.P, eta ET AL. DIFFERENCES IN FACTORS ASSOCIATED WITH FIRST TREATMENT ENTRY AND TREATMENT RE-ENTRY AMONG COCAINE USERS. 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.