Biology : standard IX 

 - Thiruvananthapuram:  State Council of Educational Research and Training, Government of Kerala,  2010 
 - 88 p. ; ill. ; 30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology
<br/><br/><label>Dewey Class. No.: </label>570 STA