APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Hopcroft, John E., Rajeev Motwani, and Jeffrey D. Ullman. Introduction to Automata Theory, Languages, and Computation. 2nd ed. Singapore: Pearson, 2001.

MLA (9th ed.) Citation

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