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| LEADER |
00668nam a22001811a 4500 |
| 001 |
UNA01000007599 |
| 005 |
20120328184809.0 |
| 008 |
080728s1966 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 372.35044
|b L717t
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| 100 |
1 |
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|a Liebherr, Harold G., ed.
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| 245 |
1 |
4 |
|a The teacher and BSCS special materials /
|c edited by Harold G. Liebherr, Glen E. Peterson
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| 260 |
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|a Boulder :
|b American Institute of Biological Sciences ,
|c 1966
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| 300 |
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|a volúmenesi, 70 páginas.
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| 490 |
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|a Biological sciences curriculum study, special publ, 4
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| 650 |
0 |
4 |
|a CIENCIA
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| 650 |
0 |
4 |
|a ENSEÑANZA
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| 700 |
1 |
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|a Peterson, Glen E.
|