APA (7th ed.) Citation

Kant, I. Fundamental Principles of the Metaphysic of Morals.

Chicago Style (17th ed.) Citation

Kant, Immanuel. Fundamental Principles of the Metaphysic of Morals.

MLA (9th ed.) Citation

Kant, Immanuel. Fundamental Principles of the Metaphysic of Morals.

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