APA (7th ed.) Citation

Kant, I., & Abbott, T. K. (2004). Fundamental Principles of the Metaphysic of Morals. Project Gutenberg.

Chicago Style (17th ed.) Citation

Kant, Immanuel, and Thomas Kingsmill Abbott. Fundamental Principles of the Metaphysic of Morals. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Kant, Immanuel, and Thomas Kingsmill Abbott. Fundamental Principles of the Metaphysic of Morals. Project Gutenberg, 2004.

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