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00642nam a22001691a 4500 |
| 001 |
UNA01000035687 |
| 005 |
20120328190416.0 |
| 008 |
080728s1993 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 560
|b Y54p
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| 100 |
1 |
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|a Yochelson, Ellis León,
|d 1928-
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| 245 |
1 |
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|a Paleobiology of climactichnites, an enigmatic late cambrian fossil /
|c Ellis L. Yochelson and Mikhail A. Fedonkin.
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| 260 |
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|a Washington :
|b Smithsonian Institution ,
|c 1993
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| 300 |
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|a iii, 74 páginas :
|b ilustraciones ;
|c 27 cm.
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| 650 |
0 |
4 |
|a CLIMATOLOGIA
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| 650 |
0 |
4 |
|a PALEONTOLOGÍA
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| 700 |
1 |
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|a Fedonkin, Mikhail A.
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