Ewald, William R. <br/><br/>
Environment and change : The next fitty years 
Edited by William R. Ewald 
 - Bloomington  Indiana University  1968 
 - xvi, 397p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Enviroment
<br/><br/><label>Dewey Class. No.: </label>O91x73 Ew14