Gaya APA

Christakis, N, A., Fowler, J, H. (2011). Connected: The Amazing Power of Social Networks and How They Shape Our Lives . London: HarperPress.

Gaya MLA

Christakis, Nicholas, A.., Fowler, James, H.. "Connected: The Amazing Power of Social Networks and How They Shape Our Lives". London: HarperPress, 2011. Text.