APA (7th ed.) Citation

Johnsen, O. A. (1924). Noregsveldets Undergang. Aschehoug.

Chicago Style (17th ed.) Citation

Johnsen, Oscar Albert. Noregsveldets Undergang. Kristiania: Aschehoug, 1924.

MLA (9th ed.) Citation

Johnsen, Oscar Albert. Noregsveldets Undergang. Aschehoug, 1924.