APA (7th ed.) Citation

Bradford, C. (2010). The ring of earth. Puffin Books.

Chicago Style (17th ed.) Citation

Bradford, Chris. The Ring of Earth. London: Puffin Books, 2010.

MLA (9th ed.) Citation

Bradford, Chris. The Ring of Earth. Puffin Books, 2010.

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