APA-viite (7. p.)
GRELLA, C., & ET AL. A PROCEDURE FOR ASSESSING THE VALIDITY OF SELF-REPORT DATA ON HIGH-RISK SEX BEHAVIORS FROM HEROIN ADDICTS ENTERING FREE METHADONE TREATMENT.
Chicago-viite (17. p.)
GRELLA, C.E, ja ET AL. A PROCEDURE FOR ASSESSING THE VALIDITY OF SELF-REPORT DATA ON HIGH-RISK SEX BEHAVIORS FROM HEROIN ADDICTS ENTERING FREE METHADONE TREATMENT.
MLA-viite (9. p.)
GRELLA, C.E, ja ET AL. A PROCEDURE FOR ASSESSING THE VALIDITY OF SELF-REPORT DATA ON HIGH-RISK SEX BEHAVIORS FROM HEROIN ADDICTS ENTERING FREE METHADONE TREATMENT.
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