1972 census of mineral industries.
Type of organization.
Washington, D.C. : For sale by the Supt. of Docs., U.S. G.P.O.
Washington, D.C. : U.S. Dept. of Commerce, Bureau of the Census, 1975.
Mineral industries /
Mineral industries / United States /
"Issued August 1975."
15 pages in various pagings ;
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