Author: Bornhardt, W., 1939.:
Title: Die Entstehung des Rammelsberger Erzvorkommens. [Arch. Lagestättenf., 68.]
Description: Berlin. 8vo. Pp. 61,[61], 54 large photos (mostly of rock samples) on 31 pls., 6 figs., bibl. Orig. wrs. Spine mended.

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