| 000 | 00534nam a22001812 4500 | ||
|---|---|---|---|
| 001 | 0000017453 | ||
| 005 | 20170918144442.0 | ||
| 008 | 071214s xx 000 0 eng d | ||
| 100 | 1 | _aMANSFIELD,Edwin. | |
| 245 | 1 | 4 | _aThe economics of technological change. |
| 250 | _a ed. | ||
| 260 |
_aLondon : _bLongmans, _c1969. |
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| 300 |
_a 257 p. : _bill ; _c cm. |
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| 504 | _aincludes bibliographical reference and index. | ||
| 650 | 0 | _aTechnological innovations- United States. | |
| 650 | 0 | _aResearch, industrial. | |
| 908 | _a071214 | ||
| 999 |
_c8906 _d8906 |
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