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AR-CrUNPB |
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170901s1993 sp r 000 0 spa d |
| 040 |
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|a AR-CrUNPB
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| 082 |
0 |
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|a 304.6/E.18
|2 20
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| 100 |
1 |
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|a Ehrlich, Paul R.
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| 700 |
1 |
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|a Ehrlich, Anne H.
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| 700 |
1 |
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|a Batlle, Camila
|e tr
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| 245 |
1 |
3 |
|a La explosion demografica :
|b el principal problema ecologico /
|c Paul R. Ehrlich
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| 255 |
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|a .6
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| 260 |
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|a Barcelona :
|b Salvat,
|c 1993
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| 300 |
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|a 334 p
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| 490 |
0 |
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|a Biblioteca Cientifica Salvat ;
|v 3
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| 590 |
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|a Registros migrados a formato MARC
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| 650 |
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7 |
|a DEMOGRAFIA
|2 Unescot
|9 2495
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| 650 |
|
7 |
|a ECOLOGIA
|9 2752
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| 942 |
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|c BK
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| 910 |
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|a ms041203
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| 999 |
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|c 70932
|d 70932
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