APA (7th ed.) Citation

Frank, L., & Langner, R. (1929). ... Karl and Anna: A drama in three acts. Brentano's.

Chicago Style (17th ed.) Citation

Frank, Leonhard, and Ruth Langner. ... Karl and Anna: A Drama in Three Acts. New York: Brentano's, 1929.

MLA (9th ed.) Citation

Frank, Leonhard, and Ruth Langner. ... Karl and Anna: A Drama in Three Acts. Brentano's, 1929.