Cita APA (7a ed.)
Blankley, T. (2009). American grit: What it will take to survive and win in the 21st century. Regnery Pub. Inc..
Cita Chicago Style (17a ed.)
Blankley, Tony. American Grit: What It Will Take to Survive and Win in the 21st Century. Washington, D.C.: Regnery Pub. Inc., 2009.
Cita MLA (9a ed.)
Blankley, Tony. American Grit: What It Will Take to Survive and Win in the 21st Century. Regnery Pub. Inc., 2009.
Precaución: Estas citas no son 100% exactas.