APA (7th ed.) Citation

Powell, E. A. (1934). The long roll on the Rhine. Macmillan.

Chicago Style (17th ed.) Citation

Powell, Edward Alexander. The Long Roll on the Rhine. New York: Macmillan, 1934.

MLA (9th ed.) Citation

Powell, Edward Alexander. The Long Roll on the Rhine. Macmillan, 1934.