Author: Stockmans, F., & Willière, Y., 1955.:
Title: Végétaux namuriens de la Belgique. II. Assise de Chokier, zône de Bioul. [Publ. Assoc. Et. Paléont. Strat. Huill., 23.]
Description: Bruxelles. 4to. Pp. 36,[22], numerous photos on 10 plates (of 11, last plate lacking), 1 map, 1 diagr. Hardbound, new rexine-lined boards with backstrip title.

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