editors, J.H. Andrews, Anngret Simms [and others] ; cartographic editor, K.M. Davies ; maps prepared in association with the Ordnance Survey of Ireland and the Ordnance Survey of Northern Ireland
editors: John Crowley, Donal Ó Drisceoil, and Mike Murphy ; associate editor: John Borgonovo ; graphics editor: Nick Hogan ; associate cartographer/researcher: Charles Roche ; researcher: Héléne O'Keeffe