Παραπομπή APA
Hermes, H., & Hermann, G. T. (1969). Enumerability, decidability, computability: An introduction to the theory of recursive functions (2d rev. ed.). Berlin: Springer.
Παραπομπή Chicago StyleHermes, Hans., and G. T. Hermann. Enumerability, Decidability, Computability: An Introduction to the Theory of Recursive Functions. 2d rev. ed. Berlin: Springer, 1969.
Παραπομπή MLAHermes, Hans., and G. T. Hermann. Enumerability, Decidability, Computability: An Introduction to the Theory of Recursive Functions. 2d rev. ed. Berlin: Springer, 1969.
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