TY  - BOOK
AU  - Lamton, Christopher
TI  - Telecommunication from Telegraphs to Modems
SN  - 0-531-12527-0
U1  - 621.382 LAM 
PY  - 1991///
CY  - United States of America
PB  - Franklin Watts
N1  - Includes: Glossary and Index
ER  -