State of the world 1994  A worldwatch institute report on progress toward a sustainable society 
Lester R. Brown,...[et al]. 
 - 1st ed. 
 - NewYork  W. W. Norton & Company  1996 
 - 265p  24cm 
<br/><br/><label>ISBN: </label>0393035786 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Môi trường