Petty, W., Hull, C. H., & Graunt, J. (1986). The economic writings: Together with the Observations upon the bills of mortality more probably by John Graunt / William Petty. Ed. by Charles Henry Hull. Kelley.

Petty, William, Charles Henry Hull, and John Graunt. The Economic Writings: Together with the Observations upon the Bills of Mortality More Probably by John Graunt / William Petty. Ed. by Charles Henry Hull. Fairfield, NJ: Kelley, 1986.

Petty, William, et al. The Economic Writings: Together with the Observations upon the Bills of Mortality More Probably by John Graunt / William Petty. Ed. by Charles Henry Hull. Kelley, 1986.