RECLUS, Elisée. Lacustrian Cities of Switzerland. Discovery of a Lost Population Lacustrian Habitation
by M. Frederic Troyon. "Translated from Revue des deux mondes: Paris, February, 1862." Signed: Elisee Reclus. Troyon, Fredéric,[1815?-1866?] « Habitations lacustres des temps anciens et modernes ». Smithsonian institution. Annual report. 1861. Washington, 1862. 24 cm. p. [345]-361 Annual report (Smithsonian Institution) ; 1861.