Zhang, Y. (2011). Combinatorial problems in mathematical competitions. World Scientific.
芝加哥风格引文Zhang, Yao. Combinatorial Problems in Mathematical Competitions. Singapore: World Scientific, 2011.
MLA引文Zhang, Yao. Combinatorial Problems in Mathematical Competitions. World Scientific, 2011.
警告：这些引文格式不一定是100％准确.