Boydell, B. (1982). The Crumhorn and other Renaissance Windcap Instruments: A Contribution to Renaissance Organology. Frits Knuf.
Lua i Stíl Chicago (17ú heag.)Boydell, Barra. The Crumhorn and Other Renaissance Windcap Instruments: A Contribution to Renaissance Organology. Buren/NL: Frits Knuf, 1982.
Lua MLA (8ú heag.)Boydell, Barra. The Crumhorn and Other Renaissance Windcap Instruments: A Contribution to Renaissance Organology. Frits Knuf, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.