References
- Mandle , G. A. 1987 . The Gaelic Athletic Association and Irish Nationalist Politics, 1884–1927 , Dublin : Gill and Macmillan .
- Burca , M. 1980 . The GAA: a history of the Gaelic Athletic Association , Dublin : Gill and McMallian .
Reference
- Porter , M. 1980 . Competitive Strategy. Techniques for Analyzing Industries and Competitors , New York : Free Press . or consult: http://www.quickmba.com/strategy/porter.shtml; or: http://www.valuebasedmanagement.net/methods_porter_five_forces.html