APA-referens (7:e uppl.)

Lewis Harry R. (2018). Elements of the Theory of Computation (4th.). Pearson.

Chicago-referens (17:e uppl.)

Lewis Harry R. Elements of the Theory of Computation. 4th. New Delhi: Pearson, 2018.

MLA-referens (9:e uppl.)

Lewis Harry R. Elements of the Theory of Computation. 4th. Pearson, 2018.