APA (7th ed.) Citation

Ludwig, K., MacArthur, C., & Hecht, B. (2004). Twentieth century. Samuel French, Inc..

Chicago Style (17th ed.) Citation

Ludwig, Ken, Charles MacArthur, and Ben Hecht. Twentieth Century. New York: Samuel French, Inc., 2004.

MLA (9th ed.) Citation

Ludwig, Ken, et al. Twentieth Century. Samuel French, Inc., 2004.