Lal, J B   . <br/><br/>
Environmental conservation /  
by J B Lal. 
 - Dehra Dun :   International Book Distributors ,   1987. 
 - 111p. :   ills figs ;   22cm .  
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label> RS 85.00 (HB) 
<br/><br/><label>Subjects--Index Terms: </label>ENVIRONMENT 
<br/><br/><label>Dewey Class. No.: </label>333.72  / LAL/E