00890cam a22002172  4500001001300000003000500013005001700018008004100035040001800076074000900094086002300103245017100126260003100297300000900328490005200337500004100389500004400430505006200474650005400536710008200590hsl000760737DGPO20170826152511.0101130s1973    dcu          f000 0 eng d  aGPOcGPOdMvI  a10230 aY 4.IN 8/14:93-11/00aRegulation of surface mining :bhearings before Subcommittee on Environment and Subcommittee on Mines and Mining, 93d Congress, 1st session, H.R. 3 and related bills.  a[Washington, D.C.],c1973.  a2 v.0 a[Committee hearings] serial, 93d Congress ;v11  aDistribution made by issuing office.  aCRDP Program Historic Shelflist record.1 aPt. 1. Apr. 9-May 15, 1973 -- pt. 2. Apr. 9-May 15, 1973. 0aStrip miningxLaw and legislationzUnited States.1 aUnited States.bCongress.bHouse.bCommittee on Interior and Insular Affairs.