Biology part I & II A textbook for higher secondary school (class XI-XII) 

 - New Delhi  National Council of Educational Research and Training  1982 
 - 303p. 
<br/><br/><label>ISBN: </label> RS 4.55 
<br/><br/><label>Source: </label> RS 4.55 
<br/><br/><label>Dewey Class. No.: </label>574 BIO