Columbia subject headings:
Apologetics--France--History--18th century.
Philosophers--France--History--18th century.
Philosophy, French--18th century.
Harvard subject headings:
Apologetics--France--History--18th century.
Philosophers--France--History--18th century.
Philosophy, French--18th century.
Princeton subject headings:
Apologetics--France--History--18th century.
Philosophers--France--History--18th century.
Philosophy, French--18th century.