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00662nam a22001811a 4500 |
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UNA01000036374 |
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20120328190440.0 |
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080728s1988 000 0 spa d |
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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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| 082 |
0 |
4 |
|a 633.15
|b T585d
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1 |
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|a Timothy, David H.
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| 245 |
1 |
0 |
|a Development and spread of improved maize varieties and hybrids in developing countries /
|c David H. Timothy, Paul H. Harvey and Christopher R. Dowswell
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| 260 |
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|a Washington :
|b AID ,
|c 1988
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| 300 |
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|a 71 p. :
|b il. ;
|c 28 cm.
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|a Bibliografía : p. 63-68
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4 |
|a MAIZ
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| 700 |
1 |
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|a Dowswell, Christopher R.
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| 700 |
1 |
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|a Harvey, Paul H.
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