Histoire de la Langue Universelle

par Louis Couturat & Léopold Leau

(1903)

SOURCE: Couturat, Louis; Leau, Léopold. Histoire de la Langue Universelle. Paris: Hachette, 1903. 1st edition. (Note: 2nd ed. Paris: Hachette, 1907. Reprint: Hildesheim; New York: G. Olms, 1979.). Click on link for PDF file.

"Leibniz, Couturat kaj la Teorio de Ido" de Tazio Carlevaro

Esperanto & Interlinguistics Study Guide / Esperanto-Gvidilo (kun interlingvistiko)

Philosophical and Universal Languages, 1600-1800, and Related Themes: Selected Bibliography

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Histoire de la Langue Universelle par Louis Couturat & Léopold Leau (1903)

Selected chapters of 1903 ed. also online here