TY  - BOOK
AU  - Black, Uyless
TI  - Emerging Communications Technologies 
SN  - 0137428340
U1  - 621.382 
PY  - 1997///
CY  - Upper Saddle River, Nj : 
PB  - Prentice-Hall, 
KW  - Data Transmission Systems
KW  - Telecommunications
N1  - NN
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-13-742834-0.pdf
ER  -