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Mining methods and costs at Hart Spur pit of Fort Worth Sand and Gravel Company (Incorporated), Fort Worth, Tex
Record is based on bibliographic data in ProQuest U.S. Executive Branch Documents, 1910-1932. Reuse except for individual research requires license from ProQuest, LLC.
Electronic reproduction. [Bethesda, Md.] : ProQuest, 2012. digital, PDF file. ProQuest U.S. Executive Branch Documents, 1910-1932. Mode of access: World Wide Web via ProQuest website.
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Mining methods and costs at Hart Spur pit of Fort Worth Sand & Gravel Co. (Inc.), Fort Worth, Tex