Cita APA (7th ed.)
Millis, W. Road to War: America, 1914-1917. Houghton Mifflin.
Cita Chicago (17th ed.)
Millis, Walter. Road to War: America, 1914-1917. Boston, EUA: Houghton Mifflin.
Cita MLA (9th ed.)
Millis, Walter. Road to War: America, 1914-1917. Houghton Mifflin.
Atenció: Aquestes cites poden no estar 100% correctes.