Author: Pastiels, A., 1960-1964.:
Title: Les lamellibranches non marins de la Zone à Communis (Westphalien A) de la Belgique. I.-II.
Description: [Publ. Centre Natl. Géol. Houill, 3 & 9.] Bruxelles. 4to. Vol. 1: pp. 42, many photos on 3 pls., 6 (1 fold.) diagrs., refs.; vol. 2: pp. 151, numerous photos on 12 pls., 8 figs., 1 fold. diagr., refs. Orig. wrs.

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