APA (7th ed.) Citation

Lynd, R. (2010). The Book of This and That. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lynd, Robert. The Book of This and That. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Lynd, Robert. The Book of This and That. Project Gutenberg, 2010.

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