APA (7th ed.) Citation

Lang, A. (1999). Books and Bookmen. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lang, Andrew. Books and Bookmen. Project Gutenberg, 1999.

MLA (9th ed.) Citation

Lang, Andrew. Books and Bookmen. Project Gutenberg, 1999.

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