00987cam a2200241 i 4500001000700000003000800007005001700015008004100032010001700073040002700090050002300117082001600140111009400156245023200250260003400482300002500516504005100541650002200592650003900614650003100653650004200684700001900726376048BD-DhUL20150219114305.0781109s1979    nyu      b    101 0 eng    a   78026238   aDLCcDLCdDLCdBD-DhUL00aTN799.9b.I63 197800a333.82bWAE2 aInternational Congress for Energy and the Ecosystemd(1978 :cUniversity of North Dakota)10aEcology and coal resource development : bbased on the International Congress for Energy and the Ecosystem, held at the University of North Dakota, Grand Forks, North Dakota, 12-16 June, 1978, vol. 1 /cedited by Mohan K. Wali.  aNew York :bPergamon,cc1979.  a2v :bill. ;c25 cm.  aIncludes bibliographical references and index. 0aCoalxCongresses. 0aCoal mines and miningxCongresses. 0aEnergy policyxCongresses. 0aEnvironmental protectionxCongresses.1 aWali, Mohan K.