Cita APA (7a ed.)

Howell, W. G., & Peterson, P. E. (2006). The Education Gap: Vouchers and Urban Schools (Rev. ed.). Brookings Institution Press.

Cita Chicago Style (17a ed.)

Howell, William G., y Paul E. Peterson. The Education Gap: Vouchers and Urban Schools. Rev. ed. Washington, D.C.: Brookings Institution Press, 2006.

Cita MLA (8a ed.)

Howell, William G., y Paul E. Peterson. The Education Gap: Vouchers and Urban Schools. Rev. ed. Brookings Institution Press, 2006.