erc: who: Marker, Andy what: Annotations (Houston, Tex.), Vol. 20, No. 4, Ed. 1, October, 1991 when: 19911000 where: https://texashistory.unt.edu/ark:/67531/metapth144477/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://texashistory.unt.edu/ark:/67531/