Cita APA (7a ed.)

Niebuhr, R. (1953). Christian realism and political problems ([1st pub.].). Faber & Faber.

Cita Chicago Style (17a ed.)

Niebuhr, Reinhold. Christian Realism and Political Problems. [1st pub.]. London: Faber & Faber, 1953.

Cita MLA (9a ed.)

Niebuhr, Reinhold. Christian Realism and Political Problems. [1st pub.]. Faber & Faber, 1953.