Cita APA (7a ed.)

Roper, J. (2000). The American presidents: Heroic leadership from Kennedy to Clinton. Edinburgh University Press.

Cita Chicago Style (17a ed.)

Roper, Jon. The American Presidents: Heroic Leadership from Kennedy to Clinton. Edinburgh: Edinburgh University Press, 2000.

Cita MLA (8a ed.)

Roper, Jon. The American Presidents: Heroic Leadership from Kennedy to Clinton. Edinburgh University Press, 2000.