| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Defending the Empire: The Conservative Party and British Defence Policy, 1899-1915 | 978-O-3OO-O5O48-6 (O-3OO-O5O48-8) | 1991 |
P R · P. Rhodri Williams · P W. · P. Williams · Prof. R. · R. Williams · Rhodri Williams