Russell Punter. (2019). "Chilly Little Penguin (First Reading Level 2) [Paperback] [Jan 01, 2010] NILL". Usborne.
Cita Chicago Style (17a ed.)Russell Punter. "Chilly Little Penguin (First Reading Level 2) [Paperback] [Jan 01, 2010] NILL". Usborne, 2019.
Cita MLA (9a ed.)Russell Punter. "Chilly Little Penguin (First Reading Level 2) [Paperback] [Jan 01, 2010] NILL". Usborne, 2019.
Precaución: Estas citas no son 100% exactas.