Cita APA (7th ed.)
CZAJKOSKI, E., & SINGER, M. (1996). EVALUATING THE EFFICACY OF HIV PREVENTION AMONG DRUG USERS: MODELS, METHODS, AND MEASURES.
Cita Chicago (17th ed.)
CZAJKOSKI, E.H, i M. SINGER. EVALUATING THE EFFICACY OF HIV PREVENTION AMONG DRUG USERS: MODELS, METHODS, AND MEASURES. 1996.
Cita MLA (9th ed.)
CZAJKOSKI, E.H, i M. SINGER. EVALUATING THE EFFICACY OF HIV PREVENTION AMONG DRUG USERS: MODELS, METHODS, AND MEASURES. 1996.
Atenció: Aquestes cites poden no estar 100% correctes.