RT Article T1 Drug abuse prevention evaluation methodology - a bright future JF Journal of drug education VO 21 IS 3 SP 191 OP 202 A1 Leukefeld, Carl G. 1943- A2 Bukoski, William J. LA English YR 1991 UL https://krimdok.uni-tuebingen.de/Record/1640157166 K1 Drogenprävention