| 000 | 00447nam a22001577a 4500 | ||
|---|---|---|---|
| 008 | 230524b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 080 |
_a6.001.6:338 _bK8 |
||
| 100 | _aMansfield, Edwin | ||
| 245 | _aThe economics of technological change | ||
| 260 |
_aGreat Britain: _bLongman, _c1968 |
||
| 300 | _a257p. | ||
| 650 | _aScience | ||
| 653 | _aTechnology | ||
| 942 |
_2udc _cBK |
||
| 999 |
_c37494 _d37494 |
||