Helman, E. 1966. H. R. Polt, Jovellanos and his English sources. Economic, philosophical, and political writings. The American Philosophical Society, Philadelphia, 1964. (Transactions, New series, Vol. 54, Part 7). Nueva Revista de Filología Hispánica (NRFH). 18, 3/4 (jul. 1966), 495–499. DOI:https://doi.org/10.24201/nrfh.v18i3/4.2934.