APA (7th ed.) Citation

Ludwig, E. W. (2011). The Lonely Ones. Project Gutenberg.

Chicago Style (17th ed.) Citation

Ludwig, Edward W. The Lonely Ones. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Ludwig, Edward W. The Lonely Ones. Project Gutenberg, 2011.

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