Cita APA (7a ed.)

Diederichs, E. (1920). Politik des Geistes: Eugen Diederichs (1.-3. Tsd.). : Diederichs.

Cita Chicago Style (17a ed.)

Diederichs, Eugen. Politik Des Geistes: Eugen Diederichs. 1.-3. Tsd. Jena: : Diederichs, 1920.

Cita MLA (8a ed.)

Diederichs, Eugen. Politik Des Geistes: Eugen Diederichs. 1.-3. Tsd. : Diederichs, 1920.