Texas. Secretary of State. Texas Register, Volume 2, Number 1, Pages 1-46, January 4, 1977, periodical, January 4, 1977; (https://texashistory.unt.edu/ark:/67531/metapth252885/m1/1/: accessed October 17, 2017), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .