APA (7th ed.) Citation

Dixon, C., Tolkien, J. R. R., & Wenzel, D. (1989). The Hobbit, or, There and back again. Eclipse Books.

Chicago Style (17th ed.) Citation

Dixon, Chuck, J. R. R. Tolkien, and David Wenzel. The Hobbit, or, There and Back Again. Forestville, Calif.: Eclipse Books, 1989.

MLA (8th ed.) Citation

Dixon, Chuck, et al. The Hobbit, or, There and Back Again. Eclipse Books, 1989.