| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 1979 |
|
A Step Farther Out | Ace Books | Nonfiction | 241 |
| July 1980 |
|
A Step Farther Out | W. H. Allen | Nonfiction | |
| August 1980 |
|
A Step Farther Out | Ace Books | Nonfiction | 241 |
| March 1984 |
|
A Step Farther Out | Ace Books | Nonfiction | 241 |