@BOOK{ Book!D - 90020416,
AUTHOR = " Alexander Kheyfits",
TITLE = "A primer in combinatorics /",
LIBRARY= "مرکز و کتابخانه مطالعات اسلامی به زبان‌های اروپایی",
SUBJECT = "Combinatorial analysis, Textbooks,Graph theory, Textbooks",
URL = "/book/90020416/A-primer-in-combinatorics/"}