The earth and human affairs. 

 - San Francisco :    Canfield press ,    1972. 
 - xii, 139 p. :    ill. ;    21 cm. 
 - Committee on Geological Sciences .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0063854902 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Earth sciences<br/> Human ecology<br/> Environmental sciences
<br/><br/><label>Dewey Class. No.: </label>304.2