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00774nam a2200217 u 4500 |
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20110720143301.0 |
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980917s1955 xxu ||||| eng |
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|a 2935363
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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|a eng
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| 082 |
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|a 631.45
|b L412S
|2 00
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| 100 |
1 |
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|a Lavin, Fred
|e Autor/a
|4 aut
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|a Seeding in the Southwestern pine zone for forage improvement and soil protection /
|c by Fred Lavin and H. W. Springfield. --
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| 250 |
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|a [1. edition]. --
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|a Washington :
|b U.S. Departamento of Agriculture,
|c 1955.
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| 300 |
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|a 52 páginas :
|b ilustraciones ;
|c 23 cm
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| 650 |
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|a CONSERVACION DE SUELOS
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| 650 |
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|a EROSION
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1 |
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|a Springfield, Harry Wayne
|d 1920-
|e Autor/a
|4 aut
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| 916 |
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|a Reconversión
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