TY  - GEN
AU  - Quinn, Jack.
TI  - Digital data communications
SN  - 0023972408
AV  - TK5103.7 
U1  - 004.6 20
PY  - 1994///
CY  - Englewood Cliffs, N.J.
PB  - Prentice Hall Career & Technology
KW  - Digital communications
N1  - Includes index
ER  -