APA (7th ed.) Citation

Lincoln, A., & Roe, M. (2005). Speeches and Letters of Abraham Lincoln, 1832-1865. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lincoln, Abraham, and Merwin Roe. Speeches and Letters of Abraham Lincoln, 1832-1865. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Lincoln, Abraham, and Merwin Roe. Speeches and Letters of Abraham Lincoln, 1832-1865. Project Gutenberg, 2005.

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