@article{239651,
      recid = {239651},
      author = {Leventhal, Joel S. and Ward, Larry B.},
      title = {Soil organic carbon content in rice soils of Arkansas and  Louisiana and a comparison to non-agricultural soils,  including a bibliography for agricultural soil carbon  [microform] /},
      publisher = {U.S. Geological Survey,},
      address = {[Denver, CO] :},
      pages = {15 leaves :},
      year = {1997},
      note = {Cover title.},
      url = {http://library.usi.edu/record/239651},
}