Bollier, D. (2008). Viral spiral: How the commoners built a digital republic of their own. New Press.
Chicago-viite (17. p.)Bollier, David. Viral Spiral: How the Commoners Built a Digital Republic of Their Own. New York: New Press, 2008.
MLA-viite (9. p.)Bollier, David. Viral Spiral: How the Commoners Built a Digital Republic of Their Own. New Press, 2008.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.