APA (7th ed.) Citation

Lavelle, S., & Chamberlain, M. (2014). My best fiend. Puffin Books.

Chicago Style (17th ed.) Citation

Lavelle, Sheila, and Margaret Chamberlain. My Best Fiend. London: Puffin Books, 2014.

MLA (9th ed.) Citation

Lavelle, Sheila, and Margaret Chamberlain. My Best Fiend. Puffin Books, 2014.

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