TY  - BOOK
AU  - Gehris, Dennis O.
AU  - Szul, Linda F.
TI  - Communication technologies/
SN  - 0130400246
AV  - TK 5101 .G36 2002
PY  - 2002///
CY  - New Jersey
PB  - Prentice Hall
KW  - Telecommunication
KW  - Information Technology
ER  -