| 'High nonsensical words!' : a study of the works of Standish James O'Grady | Hagan, Edward A. | Monograph or Collective Volume | Whitston | 1986 |
| From 'peace and freedom' to 'peace and quiet' : The Quiet Man as a product of the 1950s. | Hagan, Edward A. | Article in Book | | 2009 |
| Memory Ireland : computing consciousness and historical coma | Hagan, Edward A. | Article in Journal | | 2010 |
| Sun and wind | Hagan, Edward A.O'Grady, Standish James | Monograph or Collective Volume | University College Dublin | 2004 |
| The Aryan myth : a nineteenth-century Anglo-Irish will to power | Hagan, Edward A. | Article in Book | | 1998 |
| The green republic : a visit to south Tyrone | Hagan, Edward A.O'Gara, A. P. A. | Monograph or Collective Volume | University College Dublin Press | 2005 |