TY  - BOOK
AU  - Ruthefoord, Andrea, J 
TI  - Basic communications skills for technology 
SN  - 81-7808-281-0 
U1  - 658.45 RUT  
PY  - 2001///
CY  - Pearson education asia 
PB  - Delhi 
KW  - COMMUNICATION SYSTEM
ER  -