01508nam 2200397 450 991071592960332120210420115501.0(CKB)5470000002516801(OCoLC)1246672571(EXLCZ)99547000000251680120210420d2021 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierCoking coal of the United States modern and historical coking coal mining locations and chemical, rheological, petrographic, and other data from modern samples /by Michael H. Trippi [and three others]Reston, Virginia :U.S. Department of the Interior, U.S. Geological Survey,2021.1 online resource (xi, 112 pages) illustrations, color mapsOpen-file report ;2020-1113Includes bibliographical references (pages 57-74).Coking coal of the United States Coking coalUnited StatesHistoryCoke industryUnited StatesHistoryCoal mines and miningUnited StatesHistoryCoking coalHistory.Coke industryHistory.Coal mines and miningHistory.Trippi Michael H.1406121Geological Survey (U.S.),GPOGPOBOOK9910715929603321Coking coal of the United States3497151UNINA