Singh, Uttam Kumar (Editor) <br/><br/>
Systems approach to environmental problems 

 - New Delhi  Uttam Kumar Singh  1993 
 - 6p. 
<br/><br/><label>ISBN: </label> RS 30.00 
<br/><br/><label>Source: </label> RS 30.00 
<br/><br/><label>Dewey Class. No.: </label>304.2 SYS