Oklahoma City Times (Oklahoma City, Okla.), Vol. 91, No. 50, Ed. 2 Friday, April 18, 1980, newspaper, April 18, 1980; (https://gateway.okhistory.org/ark:/67531/metadc1846981/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .