(2011). Pretty Famous Tales: The Ugly Duckling.
Lua i Stíl Chicago (17ú heag.)Pretty Famous Tales: The Ugly Duckling. Dreamland Publications; 1 edition, 2011.
Lua MLA (8ú heag.)Pretty Famous Tales: The Ugly Duckling. 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.