TY  - BOOK
AU  - Viswanathan,Thiagrajan
TI  - Telecommunication switching systems and networks
SN  - 8120307135
U1  - 621.3857 
PY  - 2000///
CY  - New Delhi
PB  - Prentice-Hall of India Private Limited
KW  - Telecommunication systems
N1  - Includes bibliographical references and index
ER  -