| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Humans | Paperback | 978-0-671-60277-2 (0-671-60277-2) | 1985 | Pat Welch |
| Humans | Hardcover | 978-0-671-53257-4 (0-671-53257-X) | 1984 | " |
| Humans at Work | Paperback | 978-0-671-62666-2 (0-671-62666-3) | 1986 | Mike Dowdall · Pat Welch |