Biblioteca da Universidade do Minho

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International Geological Congress,, 23, Origin of coal deposits : Report of the twenty-third session - Czechoslovakia, 1968 / proceedings of section 11 [of] XXIII International Geological Congress

Origin of coal deposits : Report of the twenty-third session - Czechoslovakia, 1968 / proceedings of section 11 [of] XXIII International Geological Congress . - Prague : Academia, 1968 . - 134 p. : il. 24 cm
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