Thorson, C. (1946). The story of the three bears: Ill. by Charles Torson. John Martin's House.
Lua i Stíl Chicago (17ú heag.)Thorson, Charles. The Story of the Three Bears: Ill. by Charles Torson. Wisconsin: John Martin's House, 1946.
Lua MLA (8ú heag.)Thorson, Charles. The Story of the Three Bears: Ill. by Charles Torson. John Martin's House, 1946.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.