APA (7th ed.) Citation

O'Brien, H. (2005). Queen Emma and the Vikings: A history of power, love, and greed in eleventh-century England (1st U.S. ed.). Bloomsbury.

Chicago Style (17th ed.) Citation

O'Brien, Harriet. Queen Emma and the Vikings: A History of Power, Love, and Greed in Eleventh-century England. 1st U.S. ed. New York: Bloomsbury, 2005.

MLA (9th ed.) Citation

O'Brien, Harriet. Queen Emma and the Vikings: A History of Power, Love, and Greed in Eleventh-century England. 1st U.S. ed. Bloomsbury, 2005.