[Flyer: Texas Environmental Art], postcard, April 1991; (https://texashistory.unt.edu/ark:/67531/metapth304056/m1/1/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
[Flyer: Texas Environmental Art], postcard, April 1991; (https://texashistory.unt.edu/ark:/67531/metapth304056/m1/1/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .