Citazione APA

Ellis, R. (2010). Debating the presidency: Conflicting perspectives on the American executive. CQ Press.

Stile di citazione Chicago

Ellis, Richard. Debating the Presidency: Conflicting Perspectives on the American Executive. Washington DC: CQ Press, 2010.

Citazione MLA

Ellis, Richard. Debating the Presidency: Conflicting Perspectives on the American Executive. CQ Press, 2010.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.