| Harkness, David, see Harkness, D. W. | Cross-reference | | |
| "Never the twain ... " : Belfast - Dublin relations since 1920 | Harkness, D. W. | Article in Book | | 1987 |
| Britain and the Independence of the Dominions : the 1921 Crossroads | Harkness, D. W. | Article in Book | | 1978 |
| England's Irish Question | Harkness, D. W. | Article in Book | | 1975 |
| From Sunningdale to Hillsborough | Harkness, D. W. | Article in Book | | 1994 |
| History and the Irish. An inaugural lecture delivered before the Queen's University of Belfast on 5 May 1976 | Harkness, D. W. | Monograph or Collective Volume | Queen's University | 1976 |
| Ireland | Harkness, D. W. | Article in Book | | 1999 |
| Ireland in the twentieth century : divided island | Harkness, D. W. | Monograph or Collective Volume | Macmillan | 1996 |
| Ireland of one hundred years ago | Harkness, D. W. | Monograph or Collective Volume | Sutton | 1999 |
| Ireland Since 1921 | Harkness, D. W. | Article in Book | | 1981 |
| Ireland yesterday : an overview of Irish history | Harkness, D. W. | Article in Journal | | 1991 |
| Irish history : myth and reality | Harkness, D. W. | Article in Journal | | 1987 |
| Living with the troubles : Northern Ireland since 1972 | Harkness, D. W. | Article in Book | | 1989 |
| Mr. de Valera's Dominion : Irish Relations with Britain and the Commonwealth, 1932-1938 | Harkness, D. W. | Article in Journal | | 1970 |
| Nicholas Mansergh : historian of modern Ireland | Harkness, D. W. | Article in Journal | | 1994 |
| Northern Ireland : aspects of government and society, 1920-68 | Harkness, D. W. | Article in Journal | | 1989 |
| Northern Ireland since 1920 | Harkness, D. W. | Monograph or Collective Volume | Helicon | 1983 |
| Patrick McGilligan : man of Commonwealth | Harkness, D. W. | Article in Journal | | 1979 |
| Phillip Nicholas Seton Mansergh, 1910-1991 | Harkness, D. W. | Article in Journal | | 1993 |
| The constitutions of Ireland and the development of national identity, 1919-1984 | Harkness, D. W. | Article in Book | | 1993 |
| The Constitutions of Ireland and the Development of National Identity, 1919-84 | Harkness, D. W. | Article in Journal | | 1988 |
| The difficulties of devolution : the post war debate at Stormont | Harkness, D. W. | Article in Journal | | 1977 |
| The Restless Dominion : The Irish Free State and the British Commonwealth of Nations, 1921-31 | Harkness, D. W. | Monograph or Collective Volume | Gill & Macmillan | 1969 |
| The town in Ireland | | Monograph or Collective Volume | Appletree Press | 1981 |