http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
an official publication of the Texas Real Estate Commission
Frequency varies: 1990-1991,1993, 6 times a year; 1992, 5 times a year; 1994, "published approximately" 6 times a year; 1995, unknown.
Texas Real Estate Commission, POB 12188, Austin, TX 78711-2188