| title | ISBN-13 | year of publication |
|---|---|---|
| Byron,: The last journey, April 1823-April 1824 | 978-0-403-00805-6 | 1972 |
| Diaries and letters, 1930-1964 | 978-0-00-216304-0 | 1980 |
| Diplomacy | 978-0-19-500256-0 | 1964 |
| Peacemaking, 1919 | 978-1-931541-54-1 | 2001 |
| Tennyson, aspects of his life, character and poetry | 978-0-403-00806-3 | 2007 |
| The Congress of Vienna,: A study in allied unity: 1812-1822, | 978-0-01-562206-0 | 1970 |
G. N. · H.G. · H.N. · Harold G. · Harold G. Nicolson · Harold George, Sir Nicolson · Harold Nicolson · Sir Harold George Nicolson
HarperCollins · Oxford University Press · Scholarly Pr · Simon Publications · Various small imprints