Karras, Ruth Mazo, 1957- (Personal Name)

Slavery and society in medieval Scandinavia, 1988: CIP title page (Ruth Mazo Karras) data sheet (born February 23, 1957)

Unmarriages: women, men, and sexual unions in the Middle Ages, 2012: title page (Ruth Mazo Karras)

Whalen, Brett Edward. The two powers : the papacy, the Empire, and the struggle for sovereignty in the thirteenth century, 2019: series title page (Ruth Mazo Karras, series editor of the series The Middle Ages)

Trinity College Dublin, Department of History website, viewed October 21, 2020: link to People page (Professor Ruth Karras, Head of Department; before coming to Trinity, she taught in the United States at the University of Pennsylvania, Temple University, and the University of Minnesota) https://www.tcd.ie/history/staff/ruth-karras.php