APA (7th ed.) Citation

Liu, C. L. (1972). Introduction to combinatorial mathematics (5. print.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Liu, C. L. Introduction to Combinatorial Mathematics. 5. print. New York [u.a.]: McGraw-Hill, 1972.

MLA (9th ed.) Citation

Liu, C. L. Introduction to Combinatorial Mathematics. 5. print. McGraw-Hill, 1972.