Ehrlich, Paul R. <br/><br/>
Man and the ecosphere;  readings from Scientific American / 
by Paul R. Ehrlich, John P. Holdren, Richard W. Holm. 
 - San Francisco :  W. H. Freeman;  1971 
 - viii, 307 p. : 
<br/><br/><label>ISBN: </label>0716709430 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology.
<br/><br/><label>Dewey Class. No.: </label>304.2  / Ma