State of the world 1987 :  a Worldwatch Institute report on progress toward a sustainable society / 
Lester R. Brown ... [et al.]. 
 - New York :  W. W. Norton and Company ,     c1987 
 - xvii, 268 p. :  ill. ;  23 cm. 
 - Environmental alert series .
 - Worldwatch environmental alert series. .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0393023990 0393303896 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic development--Environmental aspects.<br/>Sustainable development.<br/>Conservation of natural resources.