APA (7th ed.) Citation

Ludwig, E., & Mayne, E. C. (1927). Wilhelm Hohenzollern, the last of the kaisers. G.P. Putnam's sons.

Chicago Style (17th ed.) Citation

Ludwig, Emil, and Ethel Colburn Mayne. Wilhelm Hohenzollern, the Last of the Kaisers. New York, London: G.P. Putnam's sons, 1927.

MLA (9th ed.) Citation

Ludwig, Emil, and Ethel Colburn Mayne. Wilhelm Hohenzollern, the Last of the Kaisers. G.P. Putnam's sons, 1927.