Concone, G. (1939). Fifty lessons for the voice for medium voice. G. Schirmer.
Lua i Stíl Chicago (17ú heag.)Concone, Giuseppe. Fifty Lessons for the Voice for Medium Voice. Milwaukee, WI: G. Schirmer, 1939.
Lua MLA (9ú heag.)Concone, Giuseppe. Fifty Lessons for the Voice for Medium Voice. G. Schirmer, 1939.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.