Rousseau, Jean-Jacques, 1712-1778. The first and second discourses together with the replies to critics and Essay on the origin of languages / [electronic resource] / Jean-Jacques Rousseau ; edited, translated, and annotated by Victor Gourevitch.. — 1st ed.. — New York : : Perennial Library,, c1986.. — ix, 390 p., [1] p. of plates : : ill. ; 21 cm.