Contaminacion del agua subterranea por nitratos y bacterias: causas y significancia
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| Format: | Tesis de doctorado |
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México
2002
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| Online Access: | https://hdl.handle.net/20.500.14330/TES01000305878 https://tesiunamdocumentos.dgb.unam.mx/pdtestdf/0305878/Index.html |