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020109s1971 mx g 000 0 spa d |
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|a AR-LpUBP
|b spa
|c AR-LpUBP
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| 100 |
1 |
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|a Litton, Gastón L.
|9 4997
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| 245 |
1 |
0 |
|a La investigación académica
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| 260 |
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|a México;Buenos Aires :
|b Centro regional de ayuda técnica. Agencia para el desarrollo internacional,
|c [1971].
|
| 300 |
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|a 185 p. ;
|c 21 cm.
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| 490 |
0 |
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|a Breviarios del bibliotecario
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| 500 |
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|a Bibliografía, p. [179]
|
| 650 |
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4 |
|a INVESTIGACIONES
|9 4998
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| 942 |
|
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|c BK
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| 952 |
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|y BK
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|c 7881
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| 988 |
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|d CLI CLI
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