Cita APA (7th ed.)

Knortz, K., & Knortz, K. (1891). [Geschichte der., 2]. Lüstenöder.

Cita Chicago (17th ed.)

Knortz, Karl, i Karl Knortz. [Geschichte Der., 2]. Berlin: Lüstenöder, 1891.

Cita MLA (8th ed.)

Knortz, Karl, i Karl Knortz. [Geschichte Der., 2]. Lüstenöder, 1891.