TY  - BOOK
AU  - Loomis, Mary E.S.
TI  - Data communications
SN  - 131964690
AV  - TK 5105 .L63 1983 
PY  - 1983///
CY  - [Place of publication not identifed]
PB  - [publisher not identified]
N1  - Data communications, Data
ER  -