1977 Census of Mineral Industries United States. Bureau of the Census Published: 1979 Total Pages: 8 Get eBook
Publications Catalog of the U.S. Department of Commerce United States. Department of Commerce. Office of Publications Published: 1980 Total Pages: 822 Get eBook
1987 Census of Mineral Industries United States. Bureau of the Census Published: 1991 Total Pages: 122 Get eBook