State of the world 1991  a Worldwatch Institute report on progress toward a sustainable society 
editor, Linda Starke. 
 - New Delhi  Worldwatch Institute  c1991. 
 - xvii, 254p.  ill  24 cm. 
<br/><br/><label>ISBN: </label>ISBN : 818552010. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sustainable development.<br/>World politics
<br/><br/><label>Dewey Class. No.: </label>901.9  / S69S