| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| First Civilizers: from Cave to City | 978-0-07-077643-2 | 1976 | Dawn Cline Trueman |
| First Inventors | 978-0-07-077645-6 | 1976 | " |
| Knight's Realm: The Castle | 978-0-07-077647-0 | 1973 | " |
| Merchant's Domain | 978-0-07-077649-4 | 1973 | Dawn Cline Trueman · John Trueman |