Author: Kaspar, J.V., 1939.:
Title: Mineralogie Kladenskych uhelnych sloji. / On the mineralogy of the coal measures from Kladno. [Knih. Statn. Geol. Ust. Cesko-Slov. Rep., 20.]
Description: Praha. 8vo, 23cm. Pp. 103, 11 photos on 6 pls., 45 figs., bibl. Orig. wrs. - Czech text with short English summary.

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