Spivey, M. (1996). An Introduction To Logic Programming Through Prolog Micahel Spivey. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Spivey, Michael. An Introduction To Logic Programming Through Prolog Micahel Spivey. Prentice-Hall, 1996.
Lua MLA (8ú heag.)Spivey, Michael. An Introduction To Logic Programming Through Prolog Micahel Spivey. Prentice-Hall, 1996.
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