Cita APA (7th ed.)

Ellis, R., & Nelson, M. (2006). Debating the presidency: Conflicting perspectives on the American executive. CQ Press.

Cita Chicago (17th ed.)

Ellis, Richard, i Michael Nelson. Debating the Presidency: Conflicting Perspectives on the American Executive. Washington, D.C: CQ Press, 2006.

Cita MLA (9th ed.)

Ellis, Richard, i Michael Nelson. Debating the Presidency: Conflicting Perspectives on the American Executive. CQ Press, 2006.