Fuller, S. Discant and the theory of fifthing. Acta musicologica.
Lua i Stíl Chicago (17ú heag.)Fuller, Sarah. "Discant and the Theory of Fifthing." Acta Musicologica .
Lua MLA (9ú heag.)Fuller, Sarah. "Discant and the Theory of Fifthing." Acta Musicologica, .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.