Cita APA (7th ed.)
ERICKSON, P., & ET AL. (1993). COCAINE USERS' PERCEPTIONS OF THEIR HEALTH STATUS AND THE RISKS OF DRUG USE. EN: THE REDUCTION OF DRUG-RELATED HARM. ROUTLEDGE.
Cita Chicago (17th ed.)
ERICKSON, P.G, i ET AL. COCAINE USERS' PERCEPTIONS OF THEIR HEALTH STATUS AND THE RISKS OF DRUG USE. EN: THE REDUCTION OF DRUG-RELATED HARM. Londres: ROUTLEDGE, 1993.
Cita MLA (9th ed.)
ERICKSON, P.G, i ET AL. COCAINE USERS' PERCEPTIONS OF THEIR HEALTH STATUS AND THE RISKS OF DRUG USE. EN: THE REDUCTION OF DRUG-RELATED HARM. ROUTLEDGE, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.