APA (7th ed.) Citation

Herndon, W. H., Weik, J. W., & White, H. (2012). Abraham Lincoln, Volume 2 (of 2) The True Story of a Great Life. Project Gutenberg.

Chicago Style (17th ed.) Citation

Herndon, William H., Jesse W. Weik, and Horace White. Abraham Lincoln, Volume 2 (of 2) The True Story of a Great Life. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Herndon, William H., et al. Abraham Lincoln, Volume 2 (of 2) The True Story of a Great Life. Project Gutenberg, 2012.

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