Author: HAWKES H E
Title: Geochemical Prospecting Investigations in the Nyeba Lead-Zinc District Nigeria Usgs Bulletin 1000 - B
Description: Washington: U. S. Government Printing Office, 1954. Paperback. USGS Bulletin 1000 - B, 52pp, illus with tables and graphs, bound in original card covers, marked; Octavo. Very Good .

Keywords: Mining