APA (7th ed.) Citation

Lynd, R. (2004). The Art of Letters. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lynd, Robert. The Art of Letters. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Lynd, Robert. The Art of Letters. Project Gutenberg, 2004.

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