Zhou, W., Sornette, D., Hill, R., & Dunbar, R. (2005). Discrete hierarchical organization of social group sizes.
芝加哥风格引文Zhou, W., D. Sornette, R. Hill, 与 R. Dunbar. Discrete Hierarchical Organization of Social Group Sizes. 2005.
MLA引文Zhou, W., et al. Discrete Hierarchical Organization of Social Group Sizes. 2005.
警告：这些引文格式不一定是100％准确.