?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Ball%2C+Andrew+S&rft.aulast=Ball&rft.aufirst=Andrew+S&rft.date=2002&rft.title=Agricultural+influences+on+carbon+emissions+and+sequestration&rft.genre=proceeding