APA (7th ed.) Citation

Lincoln, A., Choate, J. H., Roosevelt, T., Lapsley, A. B., & Schurz, C. (2004). The Papers And Writings Of Abraham Lincoln, Complete. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lincoln, Abraham, Joseph Hodges Choate, Theodore Roosevelt, Arthur Brooks Lapsley, and Carl Schurz. The Papers And Writings Of Abraham Lincoln, Complete. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Lincoln, Abraham, et al. The Papers And Writings Of Abraham Lincoln, Complete. Project Gutenberg, 2004.

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