Strimple, H. L. (1962). Crinoids from the Oologah formation (Pennsylvanian) Tulsa County, Oklahoma. University of Oklahoma.
Chicago Style (17th ed.) CitationStrimple, Harrell L. Crinoids from the Oologah Formation (Pennsylvanian) Tulsa County, Oklahoma. Norman: University of Oklahoma, 1962.
MLA (9th ed.) CitationStrimple, Harrell L. Crinoids from the Oologah Formation (Pennsylvanian) Tulsa County, Oklahoma. University of Oklahoma, 1962.
Warning: These citations may not always be 100% accurate.