Cita APA (7th ed.)

Delbrück, H. (1907). Das Mittelalter. Stilke.

Cita Chicago (17th ed.)

Delbrück, Hans. Das Mittelalter. Berlin: Stilke, 1907.

Cita MLA (8th ed.)

Delbrück, Hans. Das Mittelalter. Stilke, 1907.