APA (7th ed.) Citation

Lauren Child. (2012). I Really Absolutely Must Have Glasses. Puffin Books.

Chicago Style (17th ed.) Citation

Lauren Child. I Really Absolutely Must Have Glasses. London: Puffin Books, 2012.

MLA (9th ed.) Citation

Lauren Child. I Really Absolutely Must Have Glasses. Puffin Books, 2012.

Warning: These citations may not always be 100% accurate.