De l'esprit, or, Essays on the mind and its several faculties : translated from the edition printed under the author's inspection - Helvétius ([Printed for the translator, and sold by Mr. Dodsley and Co. [and 8 others], 1759)
First edition 1758. - Goldsmiths'-Kress no. 09538.4. - Higgs, H. Bibl. of economics, 2090. - OCLC, 23586850. - Reproduction of original from Kress Library of Business and Economics, Harvard University. - Translation of: De l'esprit