Lewis Harry R. (2018). Elements of the Theory of Computation (4th.). Pearson.
Lua i Stíl Chicago (17ú heag.)Lewis Harry R. Elements of the Theory of Computation. 4th. New Delhi: Pearson, 2018.
Lua MLA (9ú heag.)Lewis Harry R. Elements of the Theory of Computation. 4th. Pearson, 2018.
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