Public Health--Oklahoma; Oklahoma. State Dept. of Health--Periodicals; Duke, J. W.;
Annual report of the Commissioner of Public Health for the fiscal year ending July 1, 1916. Report submitted to Governor Robert L. Williams by Dr. John W. Duke, Commissioner of Public Health, May 1, 1917.
Water quality--Illinois River Watershed (Ark. and Okla.); Illinois River Watershed (Ark.-Okla.); Water--Phosphorus content--Illinois River Watershed (Ark. and Okla.)--Measurement--Planning.; Water--Phosphorus content--Government policy--Oklahoma.