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| 110 | _aUNESCO. Programa General de Información. Intergovernamental Council | ||
| 245 | _aIntergovernmental Council First Session : final report / General Information Programme | ||
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_aParís : _bUNESCO, _c1977 |
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| 300 | _a[39] H | ||
| 440 | _aP61-77/conf. 201/col ; 11 | ||
| 500 | _aMonografía | ||
| 610 | _aUNESCO. Programa General de Información | ||
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