APA (7th ed.) Citation

Spinoza, B. d. (1981). The ethics. Simon.

Chicago Style (17th ed.) Citation

Spinoza, Benedictus de. The Ethics. [Malibu, Calif.]: Simon, 1981.

MLA (9th ed.) Citation

Spinoza, Benedictus de. The Ethics. Simon, 1981.

Warning: These citations may not always be 100% accurate.