APA (7th ed.) Citation

Hopcroft, J. E., Motwani, R., & Ullman, J. D. (2001). Introduction to automata theory, languages, and computation (2nd ed.). Addison-Wesley.

Chicago Style (17th ed.) Citation

Hopcroft, John E., Rajeev Motwani, and Jeffrey D. Ullman. Introduction to Automata Theory, Languages, and Computation. 2nd ed. Boston: Addison-Wesley, 2001.

MLA (9th ed.) Citation

Hopcroft, John E., et al. Introduction to Automata Theory, Languages, and Computation. 2nd ed. Addison-Wesley, 2001.