Dufort, A. (1985). Ballet steps: Practice to performance. C.N. Potter.
Lua i Stíl Chicago (17ú heag.)Dufort, Antony. Ballet Steps: Practice to Performance. New York: C.N. Potter, 1985.
Lua MLA (9ú heag.)Dufort, Antony. Ballet Steps: Practice to Performance. C.N. Potter, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.