Tesis presentadas en el Colegio de Postgraduados 1960-1981 /
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| Main Authors: | , , |
|---|---|
| Format: | Texto biblioteca |
| Language: | spa |
| Published: |
Chapingo, Méx. : COLPOS,
1983
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| Subjects: | Colegio de Postgraduados (México), Tesis y disertaciones académicas, |
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