000 00543nam a2200157 a 4500
005 20210219160519.0
008 081109s1984 mx r 000 0 spa d
035 _aUPN01000167299
049 _aUNE
080 _a37.001.5 (100) =20 "1984" PRI.
245 0 0 _aPriority research topics in education; sources, UNESCO documents, 1976-1981= Themes prioritaires de recherches en matiere d'education; documents UNESCO 1976-1981.
260 _aParis :
_bUNESCO,
_c1984.
300 _a73 p.
690 _aInvestigacion educacional
905 _aUNESCO
999 _c139410
_d139410