Graunt, J., & Willcox, W. F. (1939). Natural and political observations made upon the bills of mortality. Johns Hopkins Press.
Cita Chicago Style (17a ed.)Graunt, John, y Walter F. Willcox. Natural and Political Observations Made upon the Bills of Mortality. Baltimore: Johns Hopkins Press, 1939.
Cita MLA (9a ed.)Graunt, John, y Walter F. Willcox. Natural and Political Observations Made upon the Bills of Mortality. Johns Hopkins Press, 1939.
Precaución: Estas citas no son 100% exactas.