TY  - GEN
AU  - Powell, David J.
TI  - Clinical supervision in alcohol and drug abuse counseling : principles, models, methods
SN  - 0787973777
PY  - 2004///
CY  - San Francisco
PB  - Jossey-Bass
KW  - alcohol
KW  - drugs
KW  - hulpverlening
KW  - supervisie
ER  -