HarperCollins · Oxford University Press
| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Abyssinian Difficulty: Emperor Theodorus and the Magdala Campaign, 1867-68 | Hardcover | 978-0-19-211747-2 | 1979 |
| Devon and Cornwall | " | 978-0-00-211195-9 | 1976 |
| Devon and Cornwall | Paperback | 978-0-00-216125-1 | 1976 |
| The Fashoda Incident of 1898: Encounter on the Nile | Hardcover | 978-0-19-211771-7 | 1984 |