Rao U R <br/><br/>
Space & Agenda 21 :caring for  planet earth 
M G Chandrasekhar & V Jayaraman 
 - Bangalore  Prism books pvt.Ltd.  1995 
<br/><br/><label>ISBN: </label>8172860358 
<br/><br/><label>LC Class. No.: </label>551