APA (7th ed.) Zitazioa
SPOONER, C., & ET AL. RESEARCH METHODS FOR STUDYING INJECTING DRUG USERS IN A RURAL CENTRE.
Chicago Style (17th ed.) Zitazioa
SPOONER, C., eta ET AL. RESEARCH METHODS FOR STUDYING INJECTING DRUG USERS IN A RURAL CENTRE.
MLA (9th ed.) Zitazioa
SPOONER, C., eta ET AL. RESEARCH METHODS FOR STUDYING INJECTING DRUG USERS IN A RURAL CENTRE.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.