"Five years of sanitary progress, reducing the typhoid toll in West Virginia. "; "West Virginia. Division of Sanitary Engineering"; "Typhoid fever--Prevention and control--West Virginia.", "Typhoid fever--Epidemiology--West Virginia.", "Sanitary engineering--West Virginia."; "West Virginia. Division of Sanitary Engineering"; "1921?"; "

Government document. Reviews progress made during a five-year initiative to improve the purity of drinking water in West Virginia.

"; ""; "P635"; "pec"; "Sanitary engineering--West Virginia.", "Typhoid fever--Prevention and control--West Virginia.", "Typhoid fever--Epidemiology--West Virginia."; "14256"; .