Liu, C. . L. (1968). Introduction to combinatorial mathematics. McGraw-Hill.
Chicago Style aipamenaLiu, C L. Introduction to Combinatorial Mathematics. New York: McGraw-Hill, 1968.
MLA aipamenaLiu, C L. Introduction to Combinatorial Mathematics. McGraw-Hill, 1968.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.