Norby and the Invaders
| First published | November 1985 |
|---|---|
| Type | Novel |
| Series | Norby Chronicles #4 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| November 1985 |
|
Norby and the Invaders | Walker & Co. | Novel | |
| 1987 | Norby: Robot for Hire | Ace Books | Omnibus | 99 | |
| February 1987 |
|
Norby: Robot for Hire | Ace Science Fiction Books | Omnibus | 99 |
| February 1987 |
|
Norby: Robot for Hire | Ace Books | Omnibus | 99 |
| May 2015 |
|
Norby and the Invaders | Janet Asimov | Novel |