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.
A symposium entitled "Recent Advances in Middle Carboniferous Biostratigraphy" was held at Stillwater, Oklahoma, on March 5, 1990 , as part of the annual meeting of the South-Central Section, Geological Society of America.