TY  - BOOK
AU  - Hopcroft, John E.
AU  - Motwani, Rajeev
AU  - Ullman, Jeffrey D
TI  - Automate Theory Languages and Computation 
SN  - 9788131720479
U1  -  005.131 
PY  - 2008///
CY  - New Delhi
PB  - Pearson
KW  - Automata, Languages, Programmable logic controller005.131
ER  -