Chatzky, J. S. (2009). The difference: How anyone can prosper in even the toughest times. New York.
Cita Chicago Style (17a ed.)Chatzky, Jean Sherman. The Difference: How Anyone Can Prosper in Even the Toughest Times. Crown Publishers: New York, 2009.
Cita MLA (8a ed.)Chatzky, Jean Sherman. The Difference: How Anyone Can Prosper in Even the Toughest Times. New York, 2009.
Precaución: Estas citas no son 100% exactas.