Dyfyniad APA
GAINEY, R., & ET AL. (1993). PREDICTING TREATMENT RETENTION AMONG COCAINE USERS.
Dyfyniad Arddull Chicago
GAINEY, R.R, and ET AL. PREDICTING TREATMENT RETENTION AMONG COCAINE USERS. 1993.
Dyfyniad MLA
GAINEY, R.R, and ET AL. PREDICTING TREATMENT RETENTION AMONG COCAINE USERS. 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.