APA (7th ed.) Citation

Williams, M. W. (1920). Social Scandinavia in the Viking age. Macmillan.

Chicago Style (17th ed.) Citation

Williams, Mary Wilhelmine. Social Scandinavia in the Viking Age. New York: Macmillan, 1920.

MLA (9th ed.) Citation

Williams, Mary Wilhelmine. Social Scandinavia in the Viking Age. Macmillan, 1920.

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