Columbia subject headings:
Apologetics--History--17th century.
Pascal, Blaise, 1623-1662.
Harvard subject headings:
Apologetics--Early works to 1800
Apologetics--History--17th century
Pascal, Blaise, 1623-1662
Princeton subject headings:
Apologetics--Early works to 1800.
Apologetics--History--17th century.
Pascal, Blaise, 1623-1662.