33600 words
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1953 |
|
Planetoid Disposals Ltd. | Milestone Publications, Ltd. | Chapbook | |
| August 1958 |
|
Planeten-Räumkommando | Pabel | Chapbook | 3 |
| April 2014 |
|
Planetoid Disposals Ltd | Gateway / Orion | Chapbook |