APA (7th ed.) Citation

Grotta, D. (1992). The biography of J.R.R. Tolkien: Architect of Middle-Earth. Running Press.

Chicago Style (17th ed.) Citation

Grotta, Daniel. The Biography of J.R.R. Tolkien: Architect of Middle-Earth. Philadelphia: Running Press, 1992.

MLA (8th ed.) Citation

Grotta, Daniel. The Biography of J.R.R. Tolkien: Architect of Middle-Earth. Running Press, 1992.