APA (7th ed.) Citation

Ludwig, E., Paul, E., & Paul, C. (1927). Bismarck, the story of a fighter. Little, Brown, & Co.

Chicago Style (17th ed.) Citation

Ludwig, Emil, Eden Paul, and Cedar Paul. Bismarck, the Story of a Fighter. Boston: Little, Brown, & Co, 1927.

MLA (9th ed.) Citation

Ludwig, Emil, et al. Bismarck, the Story of a Fighter. Little, Brown, & Co, 1927.