Kaushik, Purushotam <br/><br/>
Microbiology Questions and Answers / 
by Purushotam Kaushik 
 - New Delhi:  S. Chand and Co,  2000 
 - p.276 
<br/><br/><label>ISBN: </label>8121923867 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Biology <br/> Microbiology
<br/><br/><label>Dewey Class. No.: </label>579  / KAU-M