TY  - BOOK
AU  - Nayak Akshaya Kumar
AU  -  Chiranjeev Avinash
TI  - World encyclopaedia of communication. 9V
U1  - 4k, Q1.1-9  RR                    RR 
PY  - 2011///
CY  - New Delhi
PB  - Jnanada Prakashan     
KW  - Hindi
ER  -