?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Pridham%2C+Jackie&rft.aulast=Pridham&rft.aufirst=Jackie&rft.date=2007&rft.title=Mixtures+of+modern+and+historical+wheat+cultivars+under+organic+management+in+western+Canada+&rft.genre=proceeding