APA (7th ed.) Citation

(1896). Ethische Principienlehre. Siebert.

Chicago Style (17th ed.) Citation

Ethische Principienlehre. Siebert, 1896.

MLA (8th ed.) Citation

Ethische Principienlehre. Siebert, 1896.

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