Roberts, F. S., & Tesman, B. Applied combinatorics (2nd ed.).
芝加哥风格引文Roberts, Fred S., 与 Barry Tesman. Applied Combinatorics. 2nd ed.
MLA引文Roberts, Fred S., 与 Barry Tesman. Applied Combinatorics. 2nd ed.
警告：这些引文格式不一定是100％准确.
APA引文