APA (7th ed.) Citation

Tolkien, J. R. R., & Tolkien, C. (2013). The fall of Arthur. Houghton Mifflin Harcourt.

Chicago Style (17th ed.) Citation

Tolkien, J. R. R., and Christopher Tolkien. The Fall of Arthur. Boston: Houghton Mifflin Harcourt, 2013.

MLA (8th ed.) Citation

Tolkien, J. R. R., and Christopher Tolkien. The Fall of Arthur. Houghton Mifflin Harcourt, 2013.