TY  - BOOK
AU  - Thorpe 
AU  - Ross, Derek
TI  - X.25 made easy 
SN  - 0139721835 
U1  - 004.62 THO 1992 
PY  - 1992///
CY  - New York
PB  - Prentice Hall
KW  - Computer network protocols
KW  - Packet switching (Data transmission)
N1  - Includes bibliographical references and index
ER  -