?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Denver%2C+Sigrid&rft.aulast=Denver&rft.aufirst=Sigrid&rft.date=2007&rft.title=Organic+consumption+in+three+European+countries&rft.genre=proceeding