APA (7th ed.) Citation

Chen, C. C., & Koh, K. M. (1992). Principles and techniques in combinatorics. World Scientific.

Chicago Style (17th ed.) Citation

Chen, Chuan Chong, and K. M. Koh. Principles and Techniques in Combinatorics. New Jersey: World Scientific, 1992.

MLA (9th ed.) Citation

Chen, Chuan Chong, and K. M. Koh. Principles and Techniques in Combinatorics. World Scientific, 1992.