Russell Punter. (2019). "Chilly Little Penguin (First Reading Level 2) [Paperback] [Jan 01, 2010] NILL". Usborne.
Lua i Stíl Chicago (17ú heag.)Russell Punter. "Chilly Little Penguin (First Reading Level 2) [Paperback] [Jan 01, 2010] NILL". Usborne, 2019.
Lua MLA (9ú heag.)Russell Punter. "Chilly Little Penguin (First Reading Level 2) [Paperback] [Jan 01, 2010] NILL". Usborne, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.