Kumar, Ashok <br/><br/>
Understanding biology / 
Ashok Kumar. 
 - New Delhi :  Discovery Publishing House,  2010. 
 - 334 p.:  23 cm. 
<br/><br/> Includes index 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>978-81-8356-508-0 
<br/><br/><label>LC Class. No.: </label>570 K96u