TY  - BOOK
AU  - Croucher, Phil.
TI  - Communications & Networks: A Handbook for the Frist Time User
SN  - 1850581363
U1  - 004.6 22
PY  - 1989///
CY  - U.K
PB  - Sigma Press
N1  - Following book also having Appendix from pg. no. 154 - 174
ER  -