1. On the relative value of human life in different parts of Canada Author(s): Carpenter, Philip P. (Philip Pearsall), 1819-1877 Publication: Montreal : Printed by John Lovell, 1859 Subject(s): SanitationMortalityUrban HealthCanada
2. Report on the sanitary police of cities: presented to the American Medical Association at its annual session, held at Detroit, May, 1856 Author(s): Newman, James M. Publication: Philadelphia : T.K. and P.G. Collins, printers, 1856 Subject(s): Public HealthSanitationMortalityUrban HealthUnited States
3. The influence of sewerage and water-supply on the death-rate in cities Author(s): Smith, Erwin F. (Erwin Frink), 1854-1927 Publication: Lansing [Mich.] : Thorp & Godfrey, 1886 Subject(s): Urban HealthWaste ManagementWater SupplyMortality