000 00742nam a2200205 a 4500
005 20210223130753.0
008 081103s1981 mx r 000 0 spa d
035 _aUPN01000164783
049 _aUNE
080 _a377.1 (-77) =20 THO No.78.
100 1 _aThomas, R. Murray
245 1 0 _aBack-up schemes for educational technology breakdowns in developing nations :
_bsuggestions on pre-planning for equipment and transfer breakdown /
_cby R. Murray Thomas.
260 _aParís :
_bUNESCO ;
_aNew York :
_bUNICEF,
_c1981.
300 _a14 p.
440 0 _aNotes, comments... ;
_v78
690 _aTecnologia educacional - Paises en desarrollo
710 2 _aUNICEF
_924085
710 2 _aPrograma de Alimentación Mundial
905 _aUNESCO
999 _c136895
_d136895