Gopalkrishnan, K.V. <br/><br/>
Inventors who revolutionised our lives/ 
K.V. Gopalkrishnan 
 - 2nd ed. 
 - New Delhi:  National Book Trust,  2008. 
 - 198 p. ;  21 cm. 
 - (Popular Science) .
<br/><br/><label>ISBN: </label>978-81-237-4766-7 
<br/><br/><label>Dewey Class. No.: </label> / GOP/I