TY  - BOOK
AU  - Tooley, Michael
TI  - Data communications pocket book. (2nd ed.)
SN  - 0750604271
AV  - REF TK 5105 Too 
PY  - 1992///
CY  - Oxford
PB  - Newnes
KW  - DATA TRANSMISSION SYSTEMS--HANDBOOKS, MANUALS, ETC
ER  -