Author: Choubert, G., & Gardet, G., 1935.:
Title: Le Permien des Vosges.
Description: Rev. Géogr. Phys. Géol. Dyn., 8(4): pp. 325-362, 2 maps on 1 fold. pl., 1 fold. tab., 16 figs., bibl. Large 8vo. Offprint, orig. wrs., uncut.

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