Steffen, A. <br/><br/>
World changing:  A users guide for the 21st century 

 - Newyork:  Inc. Abrams,  2008. 
 - 596p. 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780810970854 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmentalism:<br/>Sustainable development:<br/>Green movement
<br/><br/><label>LC Class. No.: </label>HC 79 .E5W676 2006