APA (7th ed.) Citation

Rowling. (2004). Harry Potter and the philosopher's stone. Bloomsbury.

Chicago Style (17th ed.) Citation

Rowling. Harry Potter and the Philosopher's Stone. London: Bloomsbury, 2004.

MLA (8th ed.) Citation

Rowling. Harry Potter and the Philosopher's Stone. Bloomsbury, 2004.

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