State of the world 2006 :  the challenge of global sustainability / 
 Aworldwatch Institute report on progress toward a sustainable society 
Worldwatch Institute 
 - 23rd ed. 
 - London :  Earthscan,  2006 
<br/><br/><label>ISBN: </label>1844072754  RM102.38 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental protection--International cooperation<br/>Environmental pilocy cooperation<br/>Sustainable development