Ward, Barbara, <br/><br/>
Only one earth;  the care and maintenance of a small planet, 

 - [1st ed.] 
 - New York,  Norton  [1972] 
 - xxv, 225 p.  21 cm. 
<br/><br/> "An unofficial report commissioned by the Secretary-General of the United Nations Conference on the Human Environment, prepared with the assistance of a 152-member committee of corresponding consultants in 58 countries." 
<br/><br/><label>ISBN: </label>0393063917 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology.
<br/><br/><label>Dewey Class. No.: </label>301 NOR 1972 A012 Or.