Ewing, Galen W. <br/><br/>
Environmental Analysis 
/ by Galen W. Ewing 
 - New York:  Academic Press, Inc.,  1977. 
 - xiii, 344p.; 
<br/><br/><label>ISBN: </label>012245250X 
<br/><br/><label>Dewey Class. No.: </label>628.5  / EWI/E