Sutherland, Ian (1963). «John Graunt: A Tercentury Tribute». Journal of the Royal Statistical Society. Series A (General). 126 (4): 537–556. JSTOR2982578. doi:10.2307/2982578
Sutherland, Ian (1963). «John Graunt: A Tercentury Tribute». Journal of the Royal Statistical Society. Series A (General). 126 (4): 537–556. JSTOR2982578. doi:10.2307/2982578