[Rockefeller's Event Calendar: July 1980], pamphlet, 1980-06~; (https://texashistory.unt.edu/ark:/67531/metapth1544880/m1/1/: accessed June 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
[Rockefeller's Event Calendar: July 1980], pamphlet, 1980-06~; (https://texashistory.unt.edu/ark:/67531/metapth1544880/m1/1/: accessed June 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .