APA aipamena

Astley, N. &. B. (2003). Happy Birthday Peppa! Ladybird Books.

Chicago Style aipamena

Astley, Neville & Baker. Happy Birthday Peppa! london: Ladybird Books, 2003.

MLA aipamena

Astley, Neville & Baker. Happy Birthday Peppa! Ladybird Books, 2003.