APA (7e ed.) Bronvermelding

Zhou, W., Sornette, D., Hill, R., & Dunbar, R. (2005). Discrete hierarchical organization of social group sizes.

Chicago (17e ed.) Bronvermelding

Zhou, W., D. Sornette, R. Hill, en R. Dunbar. Discrete Hierarchical Organization of Social Group Sizes. 2005.

MLA (9e ed.) Bronvermelding

Zhou, W., et al. Discrete Hierarchical Organization of Social Group Sizes. 2005.