Citazione APA

Cheng, S., & Xie, Y. (2013). Structural effect of size on interracial friendship. National Academy of Sciences.

Stile di citazione Chicago

Cheng, Siwei, e Yu Xie. Structural Effect of Size On Interracial Friendship. National Academy of Sciences, 2013.

Citazione MLA

Cheng, Siwei, e Yu Xie. Structural Effect of Size On Interracial Friendship. National Academy of Sciences, 2013.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.