Bais, V. S. <br/><br/>
Enviornmane and pollution / 
by V. S. Bais and U. S. Gupta 
 - New Delhi :  Norther Book Centre,  1991. 
<br/><br/><label>ISBN: </label>8172110103 
<br/><br/><label>Subjects--Index Terms: </label>Biology Enviornment Polllution