000 00804nam a2200181 a 4500
005 20210219160516.0
008 081109s1990 mx r 000 0 spa d
035 _aUPN01000167183
049 _aUNE
080 _a372.8: 373.3 =20 "1990" LOW.
245 0 0 _aLow-cost science and technology materials at the primary school level :
_bexampleof national institutions of Democratic People's Republic ofKorea, People's Republic of China and Brasilia.
260 _aKorea :
_bMinistry of Foreing Affairs;
_bNational Commission for Unesco,
_c1990.
300 _a60 p. ;
_bil.
690 _aEnseñanza cientifica- Material y equipos didacticos
690 _aEnseñanza primaria- Enseñanza cientifica
710 1 _aKorea National Commission for UNESCO II.Corea. Minsitry of Foreign Affairs.
905 _aUNESCO
999 _c139294
_d139294