Author: Meijer, J.J. de, 1971.:
Title: Carbonate petrology of algal limestones (Lois-Ciguera Formation, Upper Carboniferous , León, Spain).
Description: Leid. Geol. Meded., 49(1).] Leiden. 4to. Pp. viii,97, 178 (18 col.) microphotos on 21 pls., 1 large fold. sheet of columnar sections in pocket, 13 figs. and diagrs., refs. Orig. wrs. - Thesis.

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