TY  - BOOK
AU  - John E.Hopcroft
TI  - Introduction To Automation, Theory,Languages and Computation
PY  - 2001///
CY  - USA
PB  - Pearson Education.
UR  - http://opac.dbit.in/cgi-bin/koha/opac-retrieve-file.pl?id=7d3ae020ba9b76e978d7749fa5273009
ER  -