?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Alexander%2C+David+G.&rft.aulast=Alexander&rft.aufirst=David+G.&rft.date=2002&rft.title=Developing+organic+production+in+Northern+Ireland&rft.genre=proceeding