APA (7th ed.) Citation

Lincoln, A. The Papers and Writings of Abraham Lincoln — Volume 3: The Lincoln-Douglas Debates.

Chicago Style (17th ed.) Citation

Lincoln, Abraham. The Papers and Writings of Abraham Lincoln — Volume 3: The Lincoln-Douglas Debates.

MLA (9th ed.) Citation

Lincoln, Abraham. The Papers and Writings of Abraham Lincoln — Volume 3: The Lincoln-Douglas Debates.

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