Registros del 1 al 2 de 2 encontrados |
1.- Advanced coal cleaning technology Gordon R. Couch London: IEA Coal Research, 1991 IEA Coal Research IV/9-7-58 Ver registro
2.- Lignite resources and characteristic Gordon R. Couch London: IEA Coal Research, 1988 IEA Coal Research IV / 1 - 7 - 42 Ver registro
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