TY  - BOOK
AU  - Stalngs,Wlam
TI  - Data and computer communications 8th edition
PY  - 2007///
CY  - [S.l.]
PB  - Prentice Hal, Inc,2007
UR  - http://www.amazon.com/exec/obidos/ASIN/B0047TDOSA/chopaconline-20
ER  -