Cita APA (7a ed.)

Wilbrandt, R. (1921). Sozialismus. Eugen Diederichs.

Cita Chicago Style (17a ed.)

Wilbrandt, Robert. Sozialismus. Jena: Eugen Diederichs, 1921.

Cita MLA (8a ed.)

Wilbrandt, Robert. Sozialismus. Eugen Diederichs, 1921.