| 000 | 00416cam a22001097a 4500 | ||
|---|---|---|---|
| 008 | 180718b1958 xxu||||| |||| 00| 0 eng d | ||
| 082 | _aT25084x73 Un3 | ||
| 245 |
_aProceedings of a conference on research and development and its impact on the economy _cby National Science Foundation, U.S. |
||
| 260 |
_aWashington _bU.S. Government Printing Office _c1958 |
||
| 300 | _a223+p | ||
| 700 | _aU.S. National Science Foundation | ||
| 999 |
_c497726 _d497726 |
||