| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Evolution of Prussia | 978-0-19-821427-4 (0-19-821427-8) | 1946 | Sir Charles Grant Robertson |
| The Eastern Question an Historical Study in European Diplomacy | 978-0-19-821508-0 (0-19-821508-8) | 1940 | |