Ritchie, StanleyEisenberg, IrwinIglitzin, AlanEnyeart, CarterThe Philadelphia String Quartet2015-05-062015-05-061979-12-07December 7 1979_Ritchie, Iglitzin, Eisenberg, Enyeart.pdfhttp://hdl.handle.net/1773/29704Concert program for Philadelphia String Quartet, December 7, 1979