000 | 00620nam a2200193 a 4500 | ||
---|---|---|---|
005 | 20221101063555.0 | ||
008 | 080610s1982 mx r 000 0 spa d | ||
020 | _a9231020714 | ||
035 | _aUPN01000156752 | ||
049 | _aUNE | ||
080 | _aOC 058.7: 002.6: 061.6 (100) =20 INF. | ||
245 | 0 | 0 |
_aInformation services on research in progress : _ba worldwide inventory / _ced. by the Smithsonian Science Information Exchange. |
260 |
_aParís : _bUNESCO, _c1982. |
||
300 | _a320 p. | ||
690 |
_aInvestigación científica _96034 |
||
690 |
_aServicios de información _97892 |
||
710 | 2 | _aUNESCO | |
905 | _aUNESCO | ||
999 |
_c128866 _d128866 |