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| Main Author: | |
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| Format: | Digital revista |
| Language: | Spanish / Castilian |
| Published: |
Universidad Autónoma Metropolitana, Unidad Xochimilco
2008
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| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0188-77422008000100001 |
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