Lua APA (7ú heag.)
Blankley, T. (2009). American grit: What it will take to survive and win in the 21st century. Regnery Pub. Inc..
Lua i Stíl Chicago (17ú heag.)
Blankley, Tony. American Grit: What It Will Take to Survive and Win in the 21st Century. Washington, D.C.: Regnery Pub. Inc., 2009.
Lua MLA (9ú heag.)
Blankley, Tony. American Grit: What It Will Take to Survive and Win in the 21st Century. Regnery Pub. Inc., 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.