erc: who: Martin, Crawford C. what: Texas Attorney General Opinion: M-62 when: 19670420 where: https://texashistory.unt.edu/ark:/67531/metapth269281/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://texashistory.unt.edu/ark:/67531/