Columbia subject headings:
French fiction--18th century--History and criticism.
Rousseau, Jean-Jacques, 1712-1778--Criticism and interpretation.
Harvard subject headings:
Language and languages--Origin--History--18th century.
Language and languages--Philosophy--History--18th century
Rousseau, Jean-Jacques, 1712-1778. Essai sur l'origine des langues.
Princeton subject headings:
French fiction--18th century--History and criticism.
Rousseau, Jean-Jacques, 1712-1778--Criticism and interpretation.