TY  - BOOK
AU  - Rorabaugh, C Britton
TI  - Communications Formulas and Algorithms: for systems analysis   and design
SN  - 0070536449
U1  - 621.382 
PY  - 1990///
CY  - New York
PB  - Mc Grawhill 
KW  - 1. Tele communication system
KW  - 2. Deisgn and communication
ER  -