U.S. Bureau of Mines Staff

Mineral Facts and Problems: 1970 Edition, Bureau of Mines Bulletin 650

Washington, D.C. U.S. Government Printing Office, 1970. greed cloth, 1291 pages. very good. Item #5568269

This is the Fourth Edition of Mineral Facts and Problems. Over the past 15 years it has become a standard reference work with respect to mineral commodities. This new edition carries forward the essential features of the three earlier editions and introduces several major innovations. DX4.

Price: $25.00