APA (7th ed.) Citation

Whittaker, T. (2011). Schopenhauer. Project Gutenberg.

Chicago Style (17th ed.) Citation

Whittaker, Thomas. Schopenhauer. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Whittaker, Thomas. Schopenhauer. Project Gutenberg, 2011.

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