Sing Y.K., Siddiqui, M.H.. <br/><br/>
Encyclopedia of teaching(Set of 11 Volumes):  Teaching of botany/ 

 - New Delhi,  APH Publishing Corporation  2012 
 - 348 p.:  23 cm. 
<br/><br/><label>LCCN: </label>9.7881313157e+012 
<br/><br/><label>Dewey Class. No.: </label>31  / SIE 2012