Purdom, Walton P. <br/><br/>
Environmental Science: Managing the Environment 

 - London:  Charles E.Merrill Publishing.  1980 
 - 523p.;ill;25cm 
<br/><br/> Includes references and index 
<br/><br/><label>ISBN: </label>8584838281 
<br/><br/><label>Dewey Class. No.: </label>304.2 PUR