Abilene Philharmonic. Abilene Philharmonic Playbill: April 7, 1990, pamphlet, April 1990; (https://texashistory.unt.edu/ark:/67531/metapth623256/m1/1/: accessed December 18, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .