Ward, Barbara,  1914-1981 <br/><br/>
Only one Earth :  the care and maintenance of a small planet/ 
Barbara Ward, Rene Dubos. 
 - England,  Penguin,  1972. 
 - 304 p. :  illus. ;  19 cm. 
<br/><br/>Includes index (300 - 304 p.) 
<br/><br/><label>ISBN: </label>0140216014 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology<br/>Ecology<br/>Environmental health
<br/><br/><label>LC Class. No.: </label>GF41 
<br/><br/><label>Dewey Class. No.: </label>301.31