APA (7th ed.) Citation

Tolstoy, L. (2004). A Letter to a Hindu. Project Gutenberg.

Chicago Style (17th ed.) Citation

Tolstoy, Leo. A Letter to a Hindu. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Tolstoy, Leo. A Letter to a Hindu. Project Gutenberg, 2004.

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