| 000 | 00564nam#a2200205#c#4500 | ||
|---|---|---|---|
| 003 | IEF | ||
| 005 | 20180219150546.0 | ||
| 008 | 941205s1990 uuu####fr####| 0||u| |u | ||
| 040 | _aIEF | ||
| 100 | 1 |
_aGriliches, Zvi _919628 |
|
| 245 | _aPatent statistics as economic indicators : a survey | ||
| 260 |
_aCambridge [Mass.] _b NBER _c1990 |
||
| 300 |
_a2 v. _b gráf. _c 24 cm. |
||
| 500 | _a1 t. en 2 V.,. -- Bibliografía. -- Resumen | ||
| 490 | _aNBER: WP ; 3301 | ||
| 650 | 4 |
_aINDICADORES ECONOMICOS _947471 |
|
| 942 | _cLIB | ||
| 942 | _z32426 | ||
| 999 |
_c8551 _d8551 |
||