TY  - BOOK
AU  - Black,Uyless
TI  - computer networks 
SN  - 0131660918 (paperback)
PY  - 1999///
CY  - [S.l.]
PB  - Prentice Hall International Paperback Editions
UR  - http://www.amazon.com/exec/obidos/ASIN/0131660918/chopaconline-20
ER  -