Kaplan, S. (2008). Bag the Elephant: How to win & keep big customers. The Free Press.
Citazione stile Chigago Style (17a edizione)Kaplan, Steve. Bag the Elephant: How to Win & Keep Big Customers. New York: The Free Press, 2008.
Citatione MLA (9a ed.)Kaplan, Steve. Bag the Elephant: How to Win & Keep Big Customers. The Free Press, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.