Anderson, C. (2009). The Longer Long Tail. Random House Business Books.
Cita Chicago (17th ed.)Anderson, Chris. The Longer Long Tail. London: Random House Business Books, 2009.
Cita MLA (9th ed.)Anderson, Chris. The Longer Long Tail. Random House Business Books, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.