erc: who: Texas. Secretary of State. what: Texas Register, Volume 15, Number 4, Pages 145-239, January 12, 1990 when: 19900112 where: https://texashistory.unt.edu/ark:/67531/metapth201698/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://texashistory.unt.edu/ark:/67531/