Man and his physical environment :   readings in environmental geology / 
	edited by Garry D. McKenzie and Russell O. Utgard. 
 - U.S.A. :  Business publishing,  c 1972. 
 - xi, 338 p. :   ill. ;  25 cm. 
<br/><br/>90  90 
<br/><br/><label>ISBN: </label>808-1348-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences
<br/><br/><label>Dewey Class. No.: </label>550 / M196m