TY  - BOOK
AU  - Petersen, David
TI  - Audio,Video and Data Telecommunications
SN  - 0077074270
AV  - TK 5101 .P44 1992
PY  - 1992///
CY  - London
PB  - McGraw-Hill Book Company
N1  - Includes Appendix, Bibliography, Index
ER  -