State of the world, 1991  a Worldwatch Institute report on progress toward a sustainable society 
project director, Lester R. Brown ;senior researchers, Lester R. Brown ... [et al.]. 
 - 1st ed. 
 - New York  Norton  c1991. 
 - xvii, 254 p.  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical notes. 
<br/><br/><label>ISBN: </label>0393307336 
<br/><br/><label>LCCN: </label>ocm23101538  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic history--1971-1990.<br/>Economic Policy