John Kells Ingram on Wikipedia
External resources
- http://books.google.com/books?hl=en&id=h7dCAAAAIAAJ&dq
- http://socserv2.mcmaster.ca/~econ/ugcm/3ll3/ingram/contents.html
- http://www.pettigo.com/Article_Details.aspx?article_id=14&tscategory_id=30
- http://www.tcd.ie/Economics/TEP/1999_papers/TEPNo9SB99.pdf
- http://www.workersliberty.org/story/2008/07/01/memory-dead