Interaction of man and the biosphere / 
Norman Abraham et. al. 
 - 2nd ed. 
 - Chicago :  Rand McNally & Company,  n.d. 
 - 378 p. :  photo ;  25 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.