@BOOK{ Book!D - 89995849,
AUTHOR = " Ralph P. Grimaldi",
TITLE = "Discrete and combinatorial mathematics :",
LIBRARY= "مرکز و کتابخانه مطالعات اسلامی به زبان‌های اروپایی",
SUBJECT = "Combinatorial analysis,Computer science-- Mathematics,Mathematics",
URL = "/book/89995849/Discrete-and-combinatorial-mathematics/"}