TY  - BOOK
AU  - Mishra Ashish Kumar. 
TI  - A texbook of information security
SN  - 978-81-7700-044-3 
U1  - 005.82 
PY  - 2016///
CY  - New delhi
PB  -  Dhanpat Rai Pub. 
KW  - Engineering
ER  -