Man and environmental processes :  a physical geography perspective / 
edited by K.J. Gregory, D.E. Walling. 
 - Westview Press, London :  Dawson,  1979. 
 - 276 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographies and index 
<br/><br/><label>ISBN: </label>071290834X 
<br/><br/><label>LCCN: </label>79-5286 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology.<br/>Man--influence on nature.