Davis, M. (1982). Computability & unsolvability (Dover ed.). New York: Dover.
Trích dẫn kiểu ChicagoDavis, Martin. Computability & Unsolvability. Dover ed. New York: Dover, 1982.
MLA citiranjeDavis, Martin. Computability & Unsolvability. Dover ed. New York: Dover, 1982.
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