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.
Oklahoma Corporation Commission--Auditing.; Oklahoma Corporation Commission--Evaluation.; Trucks--Registration and transfer--Oklahoma.; Motor fuels--Taxation--Oklahoma.; Commercial vehicles--Registration and transfer--Oklahoma.;