Advances in environmental sciences 
edited by A.K. Tripathi, A.K. Srivastava and S.N.Pandey 
 - Delhi  Ashish  1993 
 - 387p. 
<br/><br/><label>ISBN: </label>8170245281 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental policy<br/>Air pollution<br/>Ecology
<br/><br/><label>Dewey Class. No.: </label>O91 T737f