@BOOK{ Book!D - 100401303,
AUTHOR = "Hirschfelder,R.",
TITLE = "Introduction to discrete mathematics",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد دانشگاه زنجان",
SUBJECT = "inortcelEA atad gnissecorp scitamehtam",
URL = "/book/100401303/Introduction-to-discrete-mathematics/"}