Παραπομπή APA
European Monitoring Centre for Drugs and Drug Addiction. (1998). Guidelines for the evaluation of drug prevention: A manual for programme-planners and evaluators. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleEuropean Monitoring Centre for Drugs and Drug Addiction. Guidelines for the Evaluation of Drug Prevention: A Manual for Programme-planners and Evaluators. Luxembourg: Office for Official Publications of the European Communities, 1998.
Παραπομπή MLAEuropean Monitoring Centre for Drugs and Drug Addiction. Guidelines for the Evaluation of Drug Prevention: A Manual for Programme-planners and Evaluators. Luxembourg: Office for Official Publications of the European Communities, 1998.
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