TY  - BOOK
AU  - Quarterman, John S.
TI  - The Matrix Computer Networks and Conferencing Systems Worldwide 
SN  - 0135656079
U1  - 004.678 
PY  - 1990///
CY  - Burlington, Ma : 
PB  - Digital Press, 
KW  - Computer Networks
KW  - Telecommunication
N1  - YY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-13-565607-9.pdf
ER  -