Russell Punter. (2019). "Chilly Little Penguin (First Reading Level 2) [Paperback] [Jan 01, 2010] NILL". Usborne.
Chicago Style (17th ed.) CitationRussell Punter. "Chilly Little Penguin (First Reading Level 2) [Paperback] [Jan 01, 2010] NILL". Usborne, 2019.
MLA引文Russell Punter. "Chilly Little Penguin (First Reading Level 2) [Paperback] [Jan 01, 2010] NILL". Usborne, 2019.
警告:這些引文格式不一定是100%准確.