@BOOK{ Book!D - 101078934,
AUTHOR = "/ John Riordon",
TITLE = "An introduction to combinatorial analysis",
LIBRARY= "کتابخانه دانشکدگان فنی 1 دانشگاه تهران",
SUBJECT = "Combination,Permutations",
URL = "/book/101078934/An-introduction-to-combinatorial-analysis/"}