TY  - BOOK
AU  - Ghosh,Smarajit
TI  - Signals and systems 
SN  - 8177583808 (paperback)
PY  - 2004///
CY  - Australia
PB  - Pearson Education 
UR  - http://www.amazon.com/exec/obidos/ASIN/8177583808/chopaconline-20
ER  -