000 | 00537nam a2200181 a 4500 | ||
---|---|---|---|
005 | 20210219160127.0 | ||
008 | 080809s1974 mx r 000 0 spa d | ||
020 | _a9231012223 | ||
035 | _aUPN01000159151 | ||
049 | _aUNE | ||
080 | _aOC 002.6: 312.1/.3 (100) =20 INF | ||
245 | 0 | 0 | _aInformation in support of population activities. |
260 |
_aParĂs : _bUNESCO, _c1974. |
||
300 |
_a78 p. : _bil. |
||
690 | _aSistemas de informacion - Poblacion discente | ||
690 | _aPoblacion - Sistemas de informacion | ||
905 | _aUNESCO | ||
999 |
_c131265 _d131265 |