World watch. 

 - Washington, D.C. :    Worldwatch Institute,    1994. 
 - 40 p. :    ill. ;    28 cm. 
 - Vol. 1, no. 1 (Jan./Feb. 1988)- 
 - .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Sustainable development -- Periodicals.<br/> Environmental policy -- Periodicals.
<br/><br/><label>Dewey Class. No.: </label>WWI(05)1