| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| December 1972 |
|
Transit to Scorpio | DAW Books | Novel | 7 |
| December 1972 |
|
Transit to Scorpio | DAW Books / New American Library of Canada | Novel | 7 |
| April 1975 |
|
Transit to Scorpio | DAW Books / New American Library of Canada | Novel | 7 |
| May 1975 |
|
Transit to Scorpio | DAW Books | Novel | 7 |
| April 2007 |
|
The Delian Cycle | Bladud Books | Omnibus | 3 |
| August 2009 |
|
The Delian Cycle | Mushroom eBooks | Omnibus | 3 |