APA (7th ed.) Zitazioa
EL-GUEBALY, N., & ET AL. (2000). MEDICAL EDUCATION IN SUBSTANCE-RELATED DISORDERS: COMPONENTS AND OUTCOME.
Chicago Style (17th ed.) Zitazioa
EL-GUEBALY, N., eta ET AL. MEDICAL EDUCATION IN SUBSTANCE-RELATED DISORDERS: COMPONENTS AND OUTCOME. 2000.
MLA (9th ed.) Zitazioa
EL-GUEBALY, N., eta ET AL. MEDICAL EDUCATION IN SUBSTANCE-RELATED DISORDERS: COMPONENTS AND OUTCOME. 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.