La formacion La pena como roca generadora potencial en el area de Piedras Negras, Coahuila
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| Format: | Tesis de licenciatura |
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MX
1990
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| Online Access: | https://hdl.handle.net/20.500.14330/TES01000142623 http://132.248.9.195/pmig2017/0142623/Index.html |