Grimaldi, R. P. (1994). Discrete and combinatorial mathematics: An applied introduction (3rd ed.). Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)Grimaldi, Ralph P. Discrete and Combinatorial Mathematics: An Applied Introduction. 3rd ed. Reading, MA: Addison-Wesley, 1994.
Lua MLA (9ú heag.)Grimaldi, Ralph P. Discrete and Combinatorial Mathematics: An Applied Introduction. 3rd ed. Addison-Wesley, 1994.
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