| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| October 1979 |
|
The Douglas Convolution | DAW Books | Novel | [2] |
| October 1979 |
|
The Douglas Convolution | DAW Books / New American Library of Canada | Novel | [2] |
| February 1985 |
|
The Douglas Convolution | DAW Books | Novel | [2] |