Beardslee, B., & Proctor, M. Z. (2017). I Sang the Unsingable: My Life in Twentieth-Century Music. Boydell & Brewer.
Cita Chicago Style (17a ed.)Beardslee, Bethany, y Minna Zallman Proctor. I Sang the Unsingable: My Life in Twentieth-Century Music. Melton: Boydell & Brewer, 2017.
Cita MLA (8a ed.)Beardslee, Bethany, y Minna Zallman Proctor. I Sang the Unsingable: My Life in Twentieth-Century Music. Boydell & Brewer, 2017.
Precaución: Estas citas no son 100% exactas.