| 000 | 00765nam a2200193Ia 4500 | ||
|---|---|---|---|
| 005 | 20250508154315.0 | ||
| 008 | 008 250505s9999 xx 000 0 eng d | ||
| 037 | _aTextual | ||
| 040 |
_aFEDL _beng _cFEDL |
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| 041 |
_aeng _2eng |
||
| 084 |
_a330, NAT _qFEDL |
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| 245 | 0 | _aRate and direction of inventive activity : Economic and social factors | |
| 245 | 2 | _cA Conference of the Universities-National Bureau Committee for Economic Research and. The Committee on Economic Grwoth of the Social Science Research Council; A Report of the National Bureau of Economic Rsearch, New York | |
| 260 |
_aPrinceton _bPrinceton University Press _c1962 |
||
| 300 | _ax,633p. | ||
| 650 | _aEconomics | ||
| 942 |
_cTEXL _h330, NAT |
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| 999 |
_c1349498 _d1349498 |
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