Author: HIGGINS A. C. a. o. :
Title: Basal Carboniferous Strata in Part of Northern León, NW. Spain. Stratigraphy, Conodont and Goniatite Faunas.
Description: .: 2. Sheffield, University of Sheffield, (1964), 44 pp (205-248), 9 pl. h/t, stapled, paper wrapper. (Stapled off-print from the ''Bulletin de la Société belge de Géologie, de Paléontologie et d'Hydrologie, tôme LXXII). .

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