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00704nam a2200181 u 4500 |
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20110720143301.0 |
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980211s1976 au ||||| eng |
| 035 |
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|a 1654143
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| 040 |
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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| 041 |
0 |
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|a eng
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| 082 |
0 |
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|a 636.085
|b T759T
|2 00
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| 245 |
1 |
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|a Tracer studies on non-protein nitrogen for rumiants III :
|b proceedings of a research co-ordination meeting on Tracer Techniques in Studies on the Use of Non-Protein Nitrogen (NPN) in Rumiants
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| 260 |
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|a Vienna :
|b IAEA,
|c 1976.
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| 300 |
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|a 160 páginas :
|b ilustraciones
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| 650 |
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|a RUMIANTES
|x ALIMENTACION Y ALIMENTOS
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| 650 |
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|a NITROGENO EN LA NUTRICION ANIMAL
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| 916 |
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|a Reconversión
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