| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1978 | Lightning from a Clear Sky: Tolkien, the Trilogy, and the Silmarillion | Borgo Press | Nonfiction | 7 | |
| February 1979 | Lightning from a Clear Sky: Tolkien, the Trilogy, and the Silmarillion | Borgo Press | Nonfiction | 7 |