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| LEADER |
00607nam a22001691a 4500 |
| 001 |
UNA01000021648 |
| 005 |
20120328185611.0 |
| 008 |
080728s1987 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 333.823.311
|b M592m
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| 245 |
0 |
0 |
|a Methane generation from human, animal and agricultural
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| 260 |
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|a Heredia, C.R. :
|b BUNA ,
|c 1987
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| 300 |
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|a xiii, 131 hojas :
|b ilustraciones ;
|c 21 x 27 cm.
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| 504 |
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|a Incluye bibliografías
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| 500 |
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|a Fotocopia de : Washington : National Academy de Sciences, 1977
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| 650 |
0 |
4 |
|a FUENTES DE ENERGIA
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| 650 |
0 |
4 |
|a METANO
|