Hadden, C. J. Chopin.
Lua i Stíl Chicago (17ú heag.)Hadden, Cuthbert J. Chopin.
Lua MLA (8ú heag.)Hadden, Cuthbert J. Chopin.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)