Abby Klein. (2011). "Ready, Freddy! #23: A Very Crazy Christmas" (Original.). Scholastic Paperbacks.
Lua i Stíl Chicago (17ú heag.)Abby Klein. "Ready, Freddy! #23: A Very Crazy Christmas". Original. Scholastic Paperbacks, 2011.
Lua MLA (9ú heag.)Abby Klein. "Ready, Freddy! #23: A Very Crazy Christmas". Original. Scholastic Paperbacks, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.