Sowell, T. (2012). Trickle down theory and tax cuts for the rich. Hoover Institution Press.
Lua i Stíl Chicago (17ú heag.)Sowell, Thomas. Trickle Down Theory and Tax Cuts for the Rich. Stanford, Calif.: Hoover Institution Press, 2012.
Lua MLA (9ú heag.)Sowell, Thomas. Trickle Down Theory and Tax Cuts for the Rich. Hoover Institution Press, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.