APA (7th ed.) Citation

Christiansen, R. T. (1931). The Vikings and the Viking Wars in Irish and Gaelic tradition. Dybwad.

Chicago Style (17th ed.) Citation

Christiansen, Reidar Thoralf. The Vikings and the Viking Wars in Irish and Gaelic Tradition. Oslo: Dybwad, 1931.

MLA (9th ed.) Citation

Christiansen, Reidar Thoralf. The Vikings and the Viking Wars in Irish and Gaelic Tradition. Dybwad, 1931.

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