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| LEADER |
00653nam a22001811a 4500 |
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UNA01000068027 |
| 005 |
20121019135916.0 |
| 008 |
080728s1991 000 0 spa d |
| 020 |
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|a 0933833172
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| 040 |
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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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| 082 |
0 |
4 |
|a 639.97
|b W927w
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| 245 |
0 |
4 |
|a The official world wildlife fund guide to endagered species of Norh America /
|c edited by David W. Lowe.
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| 260 |
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|a Washington, D.C. :
|b Walton Beacham ,
|c 1991.
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| 300 |
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|a 560 p. :
|b il. ;
|c 30 cm.
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| 650 |
0 |
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|a CONSERVACION DE LA NATURALEZA
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| 651 |
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|a AMÉRICA DEL NORTE
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| 650 |
0 |
4 |
|a ESPECIES EN PELIGRO DE EXTINCION
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| 650 |
0 |
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|a ESPECIES RARAS
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