Citazione Stile APA (7a Edizione)
Blankley, T. (2009). American grit: What it will take to survive and win in the 21st century. Regnery Pub. Inc..
Citazione stile Chigago Style (17a edizione)
Blankley, Tony. American Grit: What It Will Take to Survive and Win in the 21st Century. Washington, D.C.: Regnery Pub. Inc., 2009.
Citatione MLA (9a ed.)
Blankley, Tony. American Grit: What It Will Take to Survive and Win in the 21st Century. Regnery Pub. Inc., 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.