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20110720143301.0 |
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s1970 s1970 xxu ||||| eng |
| 035 |
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|a 76633
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| 040 |
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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| 041 |
0 |
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|a eng
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| 082 |
0 |
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|a 301.32
|b E33p
|2 00
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| 100 |
1 |
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|a Ehrlich, Paul Ralph
|d 1932-
|e Autor/a
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| 245 |
1 |
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|a Population resources environment :
|b issues in human ecology /
|c Paul R. Ehrlich, Anne H. Ehrlich. --
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| 260 |
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|a San Francisco, Calif. :
|b W.H. Freeman,
|c 1970.
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| 300 |
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|a 383 páginas :
|b ilustraciones ;
|c 25 cm.--
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| 490 |
0 |
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|a A series of books in biology
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| 949 |
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|a -LQ b VJ
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| 916 |
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|a Registros del LS-2000
|