By Vargas Rodrigo   Novelo Eberto   in Mexican Studies

ISSN:0742-9797|19|2|277-285

University Of Chicago Press‎(2003)‎

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By Vargas Rodrigo   Novelo Eberto   in Biology and Fertility of Soils

ISSN:0178-2762|43|3|367-372

Springer Publishing Company ‎(2007)‎

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