Who speacks for earth?  seven lectures sponsored by the International Institute for Environmental Affairs during the United Nations Conference on the Human Environment held in Stockholm in June 1972 

 - New York  W. W. Norton  1973 
 - 173 p. ; 21 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0393063925 
<br/><br/><label>LCCN: </label>72-11726 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology--Addresses, essays, lectures<br/>Population--Addresses, essays, lectures<br/>Pollution--Addresses, essays, lectures