Underground Kingdom
| Author | Edward Packard |
| Genre | Young Adult/Youth literature, Adventure |
| First published | 1983 |
| Original Language | English |
| First published | 1983 |
Editions 1
Add Edition| Title | Publisher | Format | Language | Location | Dates | Impression | |
|---|---|---|---|---|---|---|---|
 | El regne subterrani | Editorial Timun Mas, S. A. | Paperback | Catalan | Barcelona, Spain | 1983 |