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|a 575.79
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|a Ehrlich, Paul R.
|9 15950
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| 245 |
1 |
0 |
|a Extinción; causas y consecuencias de la desaparición de las especies
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| 260 |
|
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|a Buenos Aires :
|b Fraterna,
|c 1984.
|
| 300 |
|
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|a 404 p. ;
|c 23 cm.
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| 500 |
|
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|a Cab. port.: Paul y Anne Ehrlich Bibliografía al final de capítulos
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4 |
|a ESPECIES-EXTINCION
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1 |
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|a Aira, César
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