TY  - BOOK
AU  - John E Hopcroft
AU  - John E Hopcroft
AU  - John E Hopcroft
AU  - John E Hopcroft
TI  - Introduction to automata theory, languages, and computation
SN  - 9788131720479
PY  - 1979///
PB  - Narosa
N1  - Automata: The Methods and the Madness
Finite Automata
Regular Expressions and Languages
Properties of Regular Languages
Context-Free Grammars and Languages
Pushdown Automata
Properties of Context-Free Languages
Introduction to Turing Machines
Undecidability
Intractable Problems
Additional Classes of Problems
UR  - https://books.google.co.in/books?id=tzttuN4gsVgC&printsec=frontcover&dq=introduction+to+automata+theory+languages+and+computation&hl=en&sa=X&ved=0ahUKEwjn8p6u-7XgAhWBO48KHXC6AnQQ6AEIKDAA#v=onepage&q=introduction%20to%20automata%20theory%20languages%20and%20computation&f=false
ER  -