Berman, G., & Fryer, K. D. (1972). Introduction to combinatorics. Acad. Press.
Chicago Style (17th ed.) CitationBerman, Gerald, and Kenneth D. Fryer. Introduction to Combinatorics. New York [u.a.]: Acad. Press, 1972.
MLA (9th ed.) CitationBerman, Gerald, and Kenneth D. Fryer. Introduction to Combinatorics. Acad. Press, 1972.
Warning: These citations may not always be 100% accurate.