| 000 | 00505pam a2200181a 44500 | ||
|---|---|---|---|
| 008 | 170807b1994 xxu||||| |||| 00| 0 eng d | ||
| 020 | _a | ||
| 082 | _aNBER TWP4662 | ||
| 100 | _aChaloupka, Frank J | ||
| 245 | _aDo Youths Substitute Alcohol And Marijuana? Some Econometric Evidence | ||
| 260 |
_aCambridge, MA _bNBER _c1994 |
||
| 300 | _a53p | ||
| 490 | _aTechnical Working Papers | ||
| 700 | _aLaixuthai A | ||
| 700 | _aNational Bureau Of Economic Research | ||
| 906 | _a16317 | ||
| 942 |
_2ddc _cG |
||
| 999 |
_c124055 _d124055 |
||