APA (7th ed.) Citation

Spinoza, B., & Seidel, H. (1972). Ethik. Röderberg-Verl.

Chicago Style (17th ed.) Citation

Spinoza, Baruch, and Helmut Seidel. Ethik. Frankfurt a. Main: Röderberg-Verl, 1972.

MLA (8th ed.) Citation

Spinoza, Baruch, and Helmut Seidel. Ethik. Röderberg-Verl, 1972.