Author: Böger, H., & Fiebig, H., 1963.:
Title: Die articulaten Brachiopoden des westdeutschen Oberkarbons. (Die Fauna des westdeutschen Oberkarbons II.)
Description: Palaeontogr., Abt. A, 122(4-6): pp. [ii],111-165, many photos on 10 plates, 24 figs., refs. 4to. Offprint, orig. wrappers.

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