Columbia subject headings:
Agobard, Saint, 769-840.
Apologetics--Early works to 1800.
Judaism--Controversial literature--Early works to 1800.
Superstition--Early works to 1800.
Theology--Early works to 1800.
Harvard subject headings:
Agobard, Saint, 769-840.
Apologetics--Early works to 1800
Judaism--Controversial literature--Early works to 1800
Superstition--Early works to 1800.
Theology--Early works to 1800
Princeton subject headings:
Agobard, Saint, 769-840.
Apologetics--Early works to 1800.
Judaism--Controversial literature--Early works to 1800.
Superstition--Early works to 1800.
Theology--Early works to 1800.