?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Hallmann%2C+Ewelina&rft.aulast=Hallmann&rft.aufirst=Ewelina&rft.date=2007&rft.title=Comparison+of+the+Nutritive+Quality+of+Tomato+Fruits+from+Organic+and+Conventional+Production+in+Poland&rft.genre=proceeding