TY  - BOOK
AU  - Martin, James,
AU  - Leben, Joe.
TI  - Principles of data communication
SN  - 013709891X
U1  - 004.6 M3642 Pr 
PY  - 1988///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Data transmission systems
N1  - "A James Martin book"--p. i; Includes index
ER  -