TY  - BOOK
AU  - Bates, Regis J. Bud
AU  - Gregory, Donald W.
TI  - Voice and Data Communications Handbook 
SN  - 9780070647664
U1  - 004.602 
PY  - 2007///
CY  - New Delhi : 
PB  - Tata McGraw-Hill Publishing, 
KW  - Telecommunication Handbooks Manuals
N1  - NY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/978-0-07-064766-4.pdf
ER  -