Abilene Philharmonic. Abilene Philharmonic Playbill: April 4-April 24, 1978, pamphlet, April 1978; (https://texashistory.unt.edu/ark:/67531/metapth623116/m1/1/: accessed June 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .