SMITH, Robert Leo <br/><br/>
The ecology of man:   An eco-system aproach / 
Robert Leo Smith 
 - New York  Harper &Row pubkishers  c1972 
 - xi, 436p.:  Ill.; 
<br/><br/> Includes reference and index 
<br/><br/><label>ISBN: </label>06043368 
<br/><br/><label>Dewey Class. No.: </label>573