Citazione Stile APA (7a Edizione)

Hall, R. E., & Rabushka, A. (2007). The flat tax (2nd ed.). Hoover Institution Press.

Citazione stile Chigago Style (17a edizione)

Hall, Robert E., e Alvin Rabushka. The Flat Tax. 2nd ed. Stanford, CA: Hoover Institution Press, 2007.

Citatione MLA (9a ed.)

Hall, Robert E., e Alvin Rabushka. The Flat Tax. 2nd ed. Hoover Institution Press, 2007.