H. E. · J. E. · J. H. · J. Halliday
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| More than Halfway There | 978-0-695-40159-7 (0-695-40159-9) | 1970 |
| More Than Halfway There | 978-0-695-80159-5 (0-695-80159-7) | 1970 |
| The Last Trip of the Juno | 978-0-695-80076-5 (0-695-80076-0) | 1970 |