Costigan, Lucy and O hEigeartaigh, Micheal (2003) An Evaluation of the Professional and Personal Development of Information Technology Workers in Ireland and the United States. Working Paper. National College of Ireland, Dublin. (Unpublished)
Costigan, Lucy (2005) Professional and Personal Development and Trade Union Membership of Information Technology Workers in the Republic of Ireland and the United States. Volume 1. Masters thesis, Dublin, National College of Ireland.
Costigan, Lucy (2005) Professional and Personal Development and Trade Union Membership of Information Technology Workers in the Republic of Ireland and the United States. Volume 2. Masters thesis, Dublin, National College of Ireland.