Author: Bouckaert, J., & Ziegler, W., 1965.:
Title: Conodont stratigraphy of the Famennian Stage (Upper Devonian) in Belgium. With a study on petrography by J. Thorez.
Description: [Mém. Explic. Cartes Géol. Min. Belgique, 5.] Bruxelles. 4to. Pp. 62, 10 pls., tabs., refs. Orig. wrs.

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