| 000 | 00438nam a2200157 a 4500 | ||
|---|---|---|---|
| 005 | 20210219162006.0 | ||
| 008 | 140211s1981 mx r 000 0 spa d | ||
| 020 | _a9232019167 | ||
| 035 | _aUPN01000195850 | ||
| 049 | _aUNE | ||
| 080 | 4 | _aDO 341.16 : 001 (094.1) =40 1980 RES 21a. | |
| 111 | 2 |
_aUNESCO. Conferencia general _n(21a. : _d1980 : _cBelgrade) |
|
| 245 | 0 | 0 | _aResolutions |
| 260 |
_aParis : _bUNESCO, _c1981. |
||
| 300 | _a183 p. | ||
| 999 |
_c167951 _d167951 |
||