00837cam a22002531 4500 gs 50000187 DLC 20260227111356.0 940525s1948 nr b b 000 0 eng c gs 50000187 (OCoLC)30489992 U.S. Geol. Survey. Libr. IEN DLC premarc QE453.N5 J6 Jones, Brynmor. The sedimentary rocks of Sokoto Province. [Lagos] Published by authority of the Nigerian Government, 1948. 75 p. fold. maps (1 in pocket) 25 cm. Nigeria. Geological Survey. Bulletin no. 18 "List of references": p. 73-75. Petrology Nigeria Sokoto (Province) Sedimentary rocks. Bulletin (Geological Survey of Nigeria) ; no. 18. 28481 28481