Benarde, Melvin A. <br/><br/>
Our precarious habitat :  an intergrated approach to understanding man's effect on his enviroment / 
by Melvin A. Benarde. 
 - New York :  W. W. Norton,  c1970. 
 - 362 p. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>LC Class. No.: </label>TD180  / .B45