Worldwatch institute reporton progress toward a sustainable society 

 -  1992 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>48646 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Biology
<br/><br/><label>Dewey Class. No.: </label>G:55.1r, N2