01830oam 2200469 450 991071174060332120190107112738.0(CKB)5470000002486667(OCoLC)953209411(OCoLC)995470000002486667(EXLCZ)99547000000248666720160707d1973 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierSummary of United States mineral resources /by Donald A. Brobst, Walden P. Pratt, and V. E. McKelveyWashington :United States Department of the Interior, Geological Survey,1973.1 online resource (19 pages) illustrationsGeological Survey circular ;682"This circular is an excerpt from Professional Paper 820, United States Mineral Resources, and consists of its first two chapters. These chapters summarize our resources and provide the basic guidelines under with the individual commodities were evaluated in greater detail in that report."Includes bibliographical references.Mines and mineral resourcesUnited StatesMines and mineral resourcesfastUnited StatesfastMines and mineral resourcesMines and mineral resources.Brobst Donald A(Donald Albert),1925-2011,1394453McKelvey V. E(Vincent Ellis),1916-Pratt Walden P.Geological Survey (U.S.),COPCOPOCLCOOCLCFOCLCAGPOBOOK9910711740603321Summary of United States mineral resources3463773UNINA