| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Balfour: A Life of Arthur James Balfour | Paperback | 978-0-7538-0146-8 | 1998 |
| Forgotten Land: Journeys Among the Ghosts of East Prussia | " | 978-0-330-45660-9 | 2012 |
| Forgotten Land: Journeys Among the Ghosts of East Prussia | Hardcover | 978-0-330-45659-3 | 2011 |
| Forgotten Land: Journeys Among the Ghosts of East Prussia | " | 978-0-374-15808-8 | 2011 |
| Secret Lives | " | 978-0-525-24834-7 | 1990 |
| Siegfried Sassoon: A Biography | Paperback | 978-1-4472-4328-1 | 2013 |
| Siegfried Sassoon: A Biography | " | 978-0-330-37527-6 | 2006 |
| Siegfried Sassoon: A Biography | Hardcover | 978-0-330-37526-9 | 2005 |
| Siegfried Sassoon: A Life | " | 978-0-374-26375-1 | 2005 |
| The Cousins: The Friendship, Opinions and Activities of Wilfrid Scawen Blunt and George Wyndham | " | 978-0-00-216134-3 | 1977 |
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