Venugopal, P. K. <br/><br/>
George stephenson. wright brothers / 
by P. K. Venugopal 
 - Kottayam :  Kairali Childrens Book Trust,  1981. 
 - Mahacharithamaala .
<br/><br/><br/>In Malayalam 
<br/><br/><label>Subjects--Index Terms: </label>Biography