Cita APA (7th ed.)

Thomas, N. C., & Pika, J. A. (1997). The politics of the presidency (Rev. 4th ed.). Congressional Quarterly Press.

Cita Chicago (17th ed.)

Thomas, Norman C., i Joseph August Pika. The Politics of the Presidency. Rev. 4th ed. Washington, D.C: Congressional Quarterly Press, 1997.

Cita MLA (9th ed.)

Thomas, Norman C., i Joseph August Pika. The Politics of the Presidency. Rev. 4th ed. Congressional Quarterly Press, 1997.