Columbia subject headings:
Authors, French--18th century--Biography.
Rousseau, Jean-Jacques, 1712-1778.
Voltaire, 1694-1778.
Harvard subject headings:
Authors, French--18th century--Biography
Rousseau, Jean-Jacques, 1712-1778
Voltaire, 1694-1778
Princeton subject headings:
Authors, French--18th century--Biography.
Rousseau, Jean-Jacques, 1712-1778.
Voltaire, 1694-1778.