Estudio edafologico de un sector de la sierra negra del estado de Puebla
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| Format: | Tesis de maestría |
| Language: | Español |
| Published: |
2010
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| Online Access: | https://hdl.handle.net/20.500.14330/TES01000656128 http://132.248.9.195/ptd2010/abril/0656128/Index.html |