APA (7th ed.) Citation

Ludwig, E., Paul, E., & Paul, C. (1926). Napoleon. Garden City Pub.

Chicago Style (17th ed.) Citation

Ludwig, Emil, Eden Paul, and Cedar Paul. Napoleon. Garden City, N.Y: Garden City Pub, 1926.

MLA (9th ed.) Citation

Ludwig, Emil, et al. Napoleon. Garden City Pub, 1926.