TY  - BOOK
AU  - Shay,William A.
TI  - Understanding data communications and networks
SN  - 0534202446
AV  - TK5105 .S49 1995
U1  - 004.6 20
PY  - 1995///
CY  - Boston
PB  - PWS Pub. Co.
KW  - Data transmission systems
KW  - Computer networks
N1  - Includes bibliographical references and index
ER  -