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|a 968-24-1193-9
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| 040 |
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|a AR-BbUGT
|b spa
|c AR-BbUGT
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| 082 |
0 |
4 |
|a 574.5
|
| 100 |
1 |
|
|a Arana, Federico.
|
| 245 |
1 |
0 |
|a Ecología para principiantes /
|c Federico Arana.
|
| 260 |
|
|
|a México :
|b Trillas,
|c 1982.
|
| 300 |
|
|
|a 138 p. :
|b il.
|
| 500 |
|
|
|a Indice analítico: p. 135-138.
|
| 653 |
|
|
|a Ecología
|
| 653 |
|
|
|a Contaminación
|
| 653 |
|
|
|a Ecosistemas
|
| 653 |
|
|
|a Hambre
|
| 653 |
|
|
|a Exobiología
|
| 942 |
|
|
|c BK
|h 574.5
|i AR11
|2 ddc
|6 574_500000000000000_AR11
|
| 999 |
|
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|c 10951
|d 10951
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