APA (7th ed.) Citation

Liu, C. L., & Liu, C. L. (1968). Introduction to combinatorial mathematics. McGraw-Hill.

Chicago Style (17th ed.) Citation

Liu, C. L., and Chung Laung Liu. Introduction to Combinatorial Mathematics. New York,: McGraw-Hill, 1968.

MLA (8th ed.) Citation

Liu, C. L., and Chung Laung Liu. Introduction to Combinatorial Mathematics. McGraw-Hill, 1968.

Warning: These citations may not always be 100% accurate.