Παραπομπή APA

Lincoln, A., & Williams, T. H. (1957). Abraham Lincoln: Selected speeches, messages, and letters. Rinehart.

Παραπομπή Chicago Style

Lincoln, Abraham, και Thomas Harry Williams. Abraham Lincoln: Selected Speeches, Messages, and Letters. New York: Rinehart, 1957.

Παραπομπή MLA

Lincoln, Abraham, και Thomas Harry Williams. Abraham Lincoln: Selected Speeches, Messages, and Letters. Rinehart, 1957.