TY  - BOOK
AU  - Grant,August E.
AU  - Harman,Jenny
TI  - Communication technology update
SN  - 0240806409
U1  - 621.382 GRA 
PY  - 2004///
CY  - Oxford
PB  - Focal
KW  - Telecommunications
KW  - Technological change
N1  - Includes diagrams; Includes tables
ER  -