TY  - BOOK
AU  - Keirstead, Phillip O.,
AU  - Keirstead, Sonia-Kay.
TI  - The World of Telecommunication: Introduction to Broadband, Cable and New Technologies
SN  - 0240800141
U1  - 621.385 
PY  - 1990///
CY  - Boston
PB  - Focal Press
N1  - This book is having appendixes & bibliography
ER  -