Cita APA (7th ed.)
GRELLA, C., & ET AL. PATTERNS AND PREDICTORS OF COCAINE AND CRACK BY CLIENTS IN STANDARD AND ENHANCED METHADONE MAINTENANCE TREATMENT.
Cita Chicago (17th ed.)
GRELLA, C.E, i ET AL. PATTERNS AND PREDICTORS OF COCAINE AND CRACK BY CLIENTS IN STANDARD AND ENHANCED METHADONE MAINTENANCE TREATMENT.
Cita MLA (9th ed.)
GRELLA, C.E, i ET AL. PATTERNS AND PREDICTORS OF COCAINE AND CRACK BY CLIENTS IN STANDARD AND ENHANCED METHADONE MAINTENANCE TREATMENT.
Atenció: Aquestes cites poden no estar 100% correctes.