?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Gordon&rft.aufirst=Susan+H&rft.au=Gordon%2C+Susan+H&rft.title=Integration+of+organic+poultry+in+whole+farm+systems%3A+manure+nutrient+budgets+&rft.date=2002&rft.genre=proceeding