| 000 | 00502nam a2200181 a 4500 | ||
|---|---|---|---|
| 005 | 20210219160529.0 | ||
| 008 | 081109s1989 mx r 000 0 spa d | ||
| 020 | _a9231026097 | ||
| 035 | _aUPN01000167457 | ||
| 049 | _aUNE | ||
| 080 | _a341.16: 001 (100)=20 "1988" ENL. | ||
| 245 | 0 | 0 |
_a1988 at UNESCO : _bnew openings. |
| 260 |
_aParïs : _bUNESCO, _c1989. |
||
| 300 |
_a56 p. : _bil. |
||
| 690 | _aOrganizaciones intergubernamentales | ||
| 690 | _aProgramas de investigacion | ||
| 905 | _aUNESCO | ||
| 999 |
_c139568 _d139568 |
||