Difference between revisions of "Firtion, 1952"
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Latest revision as of 20:08, 21 December 2016
Firtion, F., 1952: Le Cénomanien inférieur du Nouvion-en-Thiérache: examen micropaléontologique. Annales de la Société géologique du Nord, v.72, p.150-163, pl.8-10.