Scheid, F. J. (1962). Elements of finite mathematics. Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)Scheid, Francis J. Elements of Finite Mathematics. Reading, Mass: Addison-Wesley, 1962.
Lua MLA (9ú heag.)Scheid, Francis J. Elements of Finite Mathematics. Addison-Wesley, 1962.
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