TY  - BOOK
AU  - Patanjali Premchand
TI  - Sanchar siddhant ki rooprekha
U1  - Y:393, 152N7 
PY  - 1997///
CY  - Ghaziabad
PB  - K L Pachauri Prakashan India    
KW  -  COMMUNICATION
KW  - SOCIOLOGY
ER  -