TY  - BOOK
AU  - Mehay,Stephen L.
AU  - Pacula,Rosalie Liccardo
TI  - The effectiveness of workplace drug prevention policies : does 'zero tolerance' work?
AV  - HV5825 M432E
PY  - 1999///
CY  - Cambridge, Mass.
PB  - National Bureau of Economic Research
KW  - DRUG ABUSE SURVEYS
KW  - UNITED STATES
KW  - SUBSTANCE ABUSE
KW  - STATISTICS
ER  -