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00776nam a22002051a 4500 |
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UNA01000020281 |
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20120328185523.0 |
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080728s1990 000 0 spa d |
| 040 |
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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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| 082 |
0 |
4 |
|a 594.32
|b H572r
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| 100 |
1 |
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|a Hershler, Robert
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| 245 |
1 |
2 |
|a A revision of the North American Freshwater snail genus fontigens (Prosobranchia :
|b Hidrobiidae) /
|c Robert Hershler, John R. Holsinger anh Leslie Hubricht.
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| 260 |
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|a Washington :
|b Smithsonian Institution ,
|c 1990
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| 300 |
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|a 49 p. :
|b il ;
|c 28 cm.
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| 490 |
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|a Smithsonian contributions to zoology ;
|v 509
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| 650 |
0 |
4 |
|a CARACOLES
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| 650 |
0 |
4 |
|a PROSOBRANCHIA
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| 650 |
0 |
4 |
|a ACUICULTURA DE AGUA DULCE
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| 700 |
1 |
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|a Holsinger, John R.
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| 700 |
1 |
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|a Hubricht, Leslie
|