TY - GEN ED - European Monitoring Centre for Drugs and Drug Addiction [EMCDDA] TI - Guidelines for the evaluation of drug prevention : a manual for programme-planners and evaluators : second edition T2 - Manuals SN - 978-92-9168-499-1 PY - 2012/// CY - Luxembourg PB - Office for Official Publications of the European Communities KW - drugs KW - Europa KW - evaluatie KW - preventie KW - richtlijnen ER -