Hering, S. (1983). The Sigmund Hering Trumpet Course. C.Fischer.
Lua i Stíl Chicago (17ú heag.)Hering, Sigmund. The Sigmund Hering Trumpet Course. New York: C.Fischer, 1983.
Lua MLA (8ú heag.)Hering, Sigmund. The Sigmund Hering Trumpet Course. C.Fischer, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.