APA (7th ed.) Citation

Martin, G. A., & Bertram, T. p. (1985). Conversational German: A complete course in everyday German (Updated ed.). Crown.

Chicago Style (17th ed.) Citation

Martin, Genevieve A., and Theodor pseud Bertram. Conversational German: A Complete Course in Everyday German. Updated ed. New York: Crown, 1985.

MLA (9th ed.) Citation

Martin, Genevieve A., and Theodor pseud Bertram. Conversational German: A Complete Course in Everyday German. Updated ed. Crown, 1985.