TY  - BOOK
AU  - Black,Uyless
TI  - Computer networks: protocols, standards and interfaces 
SN  - 8120310411
PY  - 1993///
CY  - New Delhi
PB  - Prentice-Hall of India
KW  - Networks
KW  - computers
KW  - Data communication
N1  - Includes index
ER  -