Donn, William L. <br/><br/>
The earth :  our physical environment / 
William L. Donn 
 - New York :  John Wiley & Sons,  1972 
 - 621 p. :  ill. ;  26 cm. 
<br/><br/><label>ISBN: </label>0471217859 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geophysics