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170901s1981 fr r 000 0 spa d |
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|a AR-CrUNPB
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082 |
0 |
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|a 372.35/C.26
|2 20
|
111 |
2 |
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|a Unesco
|c Paris
|d 23 november - 2 december 1981
|
245 |
1 |
0 |
|a International Congress on science and technology education and national development /
|c Unesco
|
255 |
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|a .35
|
260 |
|
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|a París :
|b Unesco,
|c 1981
|
300 |
|
|
|a 50 p
|
500 |
|
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|a Final Report
|
590 |
|
|
|a Registros migrados a formato MARC
|
650 |
|
7 |
|a TECNOLOGIA EDUCATIVA
|2 Unescot
|9 5971
|
711 |
2 |
|
|a International Congress on science and technology education and national development
|
942 |
|
|
|c BK
|
910 |
|
|
|a LG19971210
|
999 |
|
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|c 54475
|d 54475
|