TY  - DATA
T1  - Crack, Powder Cocaine, and Heroin:  Drug Purchase and Use Patterns in Six Cities in the United States, 1995-1996
AU  - Riley, K. Jack
PY  - 2012
DO  - 10.3886/ICPSR02564.v1
PB  - Inter-university Consortium for Political and Social Research [distributor]
ER  -