Columbia subject headings:
Apologetics--Early works to 1800.
Apologetics--History--Middle Ages, 600-1500.
Judaism--Controversial literature--Early works to 1800.
Rupert, of Deutz, approximately 1075-1129. Anulus.
Harvard subject headings:
Apologetics--Early works to 1800
Apologetics--History--Middle Ages, 600-1500
Church history--12th century.
Irish poetry--History and criticism
Judaism--Controversial literature--Early works to 1800
Rupert, of Deutz, approximately 1075-1129. Anulus.
Princeton subject headings:
Apologetics--Early works to 1800.
Judaism--Controversial literature--Early works to 1800.
Rupert of Deutz, approximately 1075-1129. Anulus.