RT Book T1 Techniques for the estimation of illicit drug-use prevalence: an overview of relevant issues T2 Research report / National Institute of Justice A2 Hser, Yih-Ing LA English PP Washington, DC PB US Department of Justice, Office of Justice Programs, National Institute of Justice YR 1992 UL https://krimdok.uni-tuebingen.de/Record/1149490527 K1 Forschungsbericht