Elizabeth Lena Smith. "Musical Narrative in Three American One-Act Operas with Libretti by Gian Carlo Menotti: A Hand of Bridge, The Telephone, and Introductions and Good-Byes." PHD diss., (Florida State University, 2005), http://diginole.lib.fsu.edu/etd/1665/Arkiverad 2 december 2013 hämtat från the Wayback Machine.. s. 34-40.
Elizabeth Lena Smith. "Musical Narrative in Three American One-Act Operas with Libretti by Gian Carlo Menotti: A Hand of Bridge, The Telephone, and Introductions and Good-Byes." PHD diss., (Florida State University, 2005), http://diginole.lib.fsu.edu/etd/1665/Arkiverad 2 december 2013 hämtat från the Wayback Machine.. s. 34-40.