| 000 | 00493pam a2200181a 44500 | ||
|---|---|---|---|
| 008 | 170807b1998 xxu||||| |||| 00| 0 eng d | ||
| 020 | _a | ||
| 082 | _a6414 | ||
| 100 | _aZucker, Lynne G | ||
| 245 | _aFundamentals or population dynamics and the geographic distribution of U.S. biotechnology enterprises, 1976-1989 | ||
| 260 |
_aCambridge, MA _bNBER _c1998 |
||
| 300 | _a57p | ||
| 490 | _a | ||
| 700 | _aPeng Yusheng | ||
| 700 | _aDarby Michael R | ||
| 906 | _a41012 | ||
| 942 |
_2ddc _cG |
||
| 999 |
_c131845 _d131845 |
||