Columbia subject headings:
Great Britain--Civilization--18th century.
Imaginary letters--History and criticism.
Philosophy, Modern--18th century.
Voltaire, 1694-1778. Lettres philosophiques.
Harvard subject headings:
Great Britain--Civilization--18th century.
Imaginary letters--History and criticism.
Philosophy, Modern--18th century.
Voltaire, 1694-1778. Lettres philosophiques.
Princeton subject headings:
English literature--18th century--History and criticism.
Great Britain--Intellectual life--18th century.
Great Britain--Religion.
Voltaire, 1694-1778. Lettres philosophiques.