Regulation of surface mining operations. Hearings, Ninety-third Congress, first session, on S. 425 ... [and] S. 923 ..
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Item Link | Original Source |
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Full view v.1 | University of Illinois at Urbana-Champaign |
Full view (pt.1-2) | University of California |
Full view v.2 | University of Illinois at Urbana-Champaign |