Kreutz, A. (1942). Winter of the blue snow, from Paul Bunyan. Birchard.
Lua i Stíl Chicago (17ú heag.)Kreutz, Arthur. Winter of the Blue Snow, from Paul Bunyan. Boston: Birchard, 1942.
Lua MLA (9ú heag.)Kreutz, Arthur. Winter of the Blue Snow, from Paul Bunyan. Birchard, 1942.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.