Introduction to Automata Theory, - Paperback, by Hopcroft John - Acceptable

Introduction to Automata Theory, Languages, and Computation John E Hopcraft PB

Introduction to Automata Theory, Languages, - Paperback, by Hopcroft John - Good

Introduction to Automata Theory, Languages, and Computation

Introduction to Automata Theory, Langugages, and Computation John

Introduction to Theory of Computation

An introduction to formal languages ??and automata