TY  - BOOK
AU  -  Stallings, William
TI  - Data and computer communications
SN  - 9788131715369
U1  - 004.6 
PY  - 2011///
CY  - New Delh
PB  - Pearson,20
N1  - “It Includes bibliographical references(797-834) and index”
ER  -