| 000 | 00828nam a2200181 a 4500 | ||
|---|---|---|---|
| 005 | 20210219160516.0 | ||
| 008 | 081109s1990 mx r 000 0 spa d | ||
| 035 | _aUPN01000167182 | ||
| 049 | _aUNE | ||
| 080 | _a372.8: 375.5 =20 "1990" LOW. | ||
| 245 | 0 | 0 |
_aLow-cost science and technology materials at the senior middle school lower grades level : _bexamples of national institutions of Democratic People's Republic of Korea, People's Republic of China and Brasilia. |
| 260 |
_aKorea : _bMinistry of Foreing Affairs; _bNational Commission for UNESCO, _c1990. |
||
| 300 |
_a47 p. ; _bil. |
||
| 690 | _aEnseñanza cientifica- Material y equipos didacticos | ||
| 690 | _aEnseñanza secundaria- Enseñanza cientifica | ||
| 710 | 1 | _aKorea National Commission for UNESCO II.Corea. Ministry of Foreign Affairs. | |
| 905 | _aUNESCO | ||
| 999 |
_c139293 _d139293 |
||