Ecology and coal resource development :  based on the International Congress for Energy and the Ecosystem, held at the University of North Dakota, Grand Forks, North Dakota, 12-16 June, 1978 / 
edited by Mohan K. Wali 
 - New York :  Pergamon Press ,  1979 
 - xiv, v. :  ill. ;  25 cm. 
<br/><br/>Includes bibliograpbical references and index 
<br/><br/><label>ISBN: </label>0080238637 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal--Congresses<br/>Coal mines and mining--Congresses<br/>Energy policy--Congresses<br/>Environmental protection--Congresses