Keller, Edward A. <br/><br/>
Environmental Geology / 
Edward A. Keller,  
 - 2nd.ed. 
 - Columbus:  CHarles E.Merrill,  1979. 
 - XII,547p.:  [hb] 
<br/><br/><label>ISBN: </label>0675082964 
<br/><br/><label>Dewey Class. No.: </label>550  / KEL-E