S.K. Prasad <br/><br/>
Biological agents 
by S.K. Prasad 
 - New Delhi  Discovery Publishing House pvt. Ltd.  c2009 
 - 278 p 
<br/><br/><label>ISBN: </label>978-81-8356-381-9 
<br/><br/><label>Dewey Class. No.: </label>630