Neumann, P. (1996). Permutation groups and close-knit families of sets.
芝加哥风格引文Neumann, P. Permutation Groups and Close-knit Families of Sets. 1996.
MLA引文Neumann, P. Permutation Groups and Close-knit Families of Sets. 1996.
警告：这些引文格式不一定是100％准确.
APA引文