Hallett, D. (1971). Foraminifera and algae from the Yoredale “Series” (Visean–Namurian) of northern England. Sixième Congrès International de Stratigraphie et de Géologie du Carbonifère, Compte Rendu, Sheffield. 3[1967]: 873-901.
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Hallett, D.
1971
Foraminifera and algae from the Yoredale “Series” (Visean–Namurian) of northern England.
Sixième Congrès International de Stratigraphie et de Géologie du Carbonifère, Compte Rendu, Sheffield
3[1967]: 873-901
Publication
Volume I, pp. 1-370, published July 1969 Volume Il, pp. 371-842, published June 1970. Volume III, pp. 843-1318, published January 1971 Volume IV, pp. 1319-1754, published September 1971