APA (7th ed.) Citation

Queen, E., Gault, W. C., & Fock, B. (1970). Sanatorium des Todes: Kriminalroman. Ullstein.

Chicago Style (17th ed.) Citation

Queen, Ellery, William Campbell Gault, and Brigitte Fock. Sanatorium Des Todes: Kriminalroman. Frankfurt/M ; Berlin: Ullstein, 1970.

MLA (9th ed.) Citation

Queen, Ellery, et al. Sanatorium Des Todes: Kriminalroman. Ullstein, 1970.