Astley, N. &. B. (2016). Peppa's first 100 words: A fun lift-the-flap book. Ladybird Books.
芝加哥风格引文Astley, Neville & Baker. Peppa's First 100 Words: A Fun Lift-the-flap Book. london: Ladybird Books, 2016.
MLA引文Astley, Neville & Baker. Peppa's First 100 Words: A Fun Lift-the-flap Book. Ladybird Books, 2016.
警告：这些引文格式不一定是100％准确.