RT Book T1 Estimating Elasticities of Demand for Cocaine and Heroin With Data from the Drug Use Forecasting System, Final Report A1 Caulkins, Jonathan P. 1965- LA English PP Erscheinungsort nicht ermittelbar PB United States Department of Justice, National Institute of Justice YR 1995 UL https://krimdok.uni-tuebingen.de/Record/191254055X