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Goodwin, John. Progress of the Two Sicilies Under the Spanish Bourbons, from the Year 1734-35 to 1840. Journal of the Statistical Society of London. 1842, 5 (1): 47–73. ISSN 0959-5341. JSTOR 2337950. doi:10.2307/2337950.
Goodwin, John. Progress of the Two Sicilies Under the Spanish Bourbons, from the Year 1734-35 to 1840. Journal of the Statistical Society of London. 1842, 5 (1): 47–73. ISSN 0959-5341. JSTOR 2337950. doi:10.2307/2337950.