| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1997 |
|
The Hobbit Companion | Turner Publishing | Nonfiction | bp |
| October 2012 |
|
The Hobbit Companion | Pavilion Books | Nonfiction | |
| October 2012 |
|
The Hobbit Companion | Pavilion Books | Nonfiction |