TY  - BOOK
AU  - Shay,William A.
TI  - Understanding data communications and networks
SN  - 0534202446 (hbk.)
PY  - 1995///
CY  - Boston
PB  - PWS
KW  - Data transmission systems
KW  - Computer networks
N1  - Includes index; Includes bibliographical reference
ER  -