APA-Zitierstil (7. Ausg.)

Watts, D. J. (2003). Six degrees: The science of a connected age (1. ed.). Norton.

Chicago-Zitierstil (17. Ausg.)

Watts, Duncan J. Six Degrees: The Science of a Connected Age. 1. ed. New York, NY: Norton, 2003.

MLA-Zitierstil (9. Ausg.)

Watts, Duncan J. Six Degrees: The Science of a Connected Age. 1. ed. Norton, 2003.