APA (7th ed.) Citation

Ehrhardt, H. (1993). Olaf Haraldsson III. Kyrre ("der Ruhige"), König von Norwegen (1066-93).

Chicago Style (17th ed.) Citation

Ehrhardt, Harald. Olaf Haraldsson III. Kyrre ("der Ruhige"), König Von Norwegen (1066-93). 1993.

MLA (9th ed.) Citation

Ehrhardt, Harald. Olaf Haraldsson III. Kyrre ("der Ruhige"), König Von Norwegen (1066-93). 1993.

Warning: These citations may not always be 100% accurate.