Astley, N. &. B. (2003). Peppa Pig: Peppa Pig's Family Computer. Ladybird Books.
Lua i Stíl Chicago (17ú heag.)Astley, Neville & Baker. Peppa Pig: Peppa Pig's Family Computer. london: Ladybird Books, 2003.
Lua MLA (8ú heag.)Astley, Neville & Baker. Peppa Pig: Peppa Pig's Family Computer. Ladybird Books, 2003.
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