TY  - BOOK
AU  - GHOTRA. D S AND NIJHAWAN, GEETA  
TI  - COMMUNICATION SYSTEM  
T2  - N  
U1  - 621.38 GHO GHO   
CY  - MANAV RACHNA PUB, 2011.  
N1  - Shifted from Book Bank New Scheme to Library
ER  -