RT Book T1 Relations between increases in the certainty, severity and celerity of punishment for drug crimes and reductions in the level of crime, drug crime, and the effects of drug abuse: prepared for the Office of National Drug Control Policy A1 Cavanagh, David P. LA English PP Cambridge, Mass. PB Botec Analysis Corp. YR 1996 UL https://krimdok.uni-tuebingen.de/Record/1128119986