| 000 | 00431pam a2200181a 44500 | ||
|---|---|---|---|
| 008 | 170807b1998 xxu||||| |||| 00| 0 eng d | ||
| 020 | _a | ||
| 082 | _a6411 | ||
| 100 | _aChaloupka, Frank J | ||
| 245 | _aThe Demand for cocaine and marijuana by youth | ||
| 260 |
_aCambridge, MA _bNBER _c1998 |
||
| 300 | _a32p | ||
| 490 | _a | ||
| 700 | _aTauras John A | ||
| 700 | _aGrossman Michael | ||
| 906 | _a41014 | ||
| 942 |
_2ddc _cG |
||
| 999 |
_c131846 _d131846 |
||