APA (7th ed.) Citation

Ludwig, E., Paul, E., & Paul, C. (1935). Hindenburg. The John C. Winston Company.

Chicago Style (17th ed.) Citation

Ludwig, Emil, Eden Paul, and Cedar Paul. Hindenburg. Philadelphia ; Chicago: The John C. Winston Company, 1935.

MLA (9th ed.) Citation

Ludwig, Emil, et al. Hindenburg. The John C. Winston Company, 1935.