APA (7th ed.) Citation

John Ronald Reulen Tolkien. El Hobbit (20 ed.).

Chicago Style (17th ed.) Citation

John Ronald Reulen Tolkien. El Hobbit. 20 ed.

MLA (8th ed.) Citation

John Ronald Reulen Tolkien. El Hobbit. 20 ed.

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