APA (7th ed.) Citation

Lewis, E. R. (1969). A history of American political thought from the Civil War to the World War. Octagon Books.

Chicago Style (17th ed.) Citation

Lewis, Edward Rieman. A History of American Political Thought from the Civil War to the World War. New York: Octagon Books, 1969.

MLA (9th ed.) Citation

Lewis, Edward Rieman. A History of American Political Thought from the Civil War to the World War. Octagon Books, 1969.