Lewis, H. R., & Papadimitriou, C. H. (1981). Elements of the theory of computation (2nd ed.). Prentice-Hall.
Chicago-čujuhus (17. p.)Lewis, Harry R., juo Christos H. Papadimitriou. Elements of the Theory of Computation. 2nd ed. New Jersey: Prentice-Hall, 1981.
MLA-čujuhus (9. p.)Lewis, Harry R., juo Christos H. Papadimitriou. Elements of the Theory of Computation. 2nd ed. Prentice-Hall, 1981.
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