?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Jankowska-Huflejt%2C+Dr+Halina&rft.aulast=Jankowska-Huflejt&rft.aufirst=Halina&rft.date=2006&rft.title=Economical+evaluation+of+organic+meadow+farms+in+Poland+&rft.genre=proceeding