TY  - BOOK
AU  - Mansfield, Kenneth C.
AU  - Antonakos, James L.
TI  - An Introduction to Computer Networking 
SN  - 8120321308
U1  - 004.6 
PY  - 2003///
CY  - New Delhi : 
PB  - Prentice-Hall of India, 
KW  - Data Networks
N1  - NY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/81-203-2130-8.pdf
ER  -