@article{199621,
      note = {Distributed to depository libraries in microfiche.},
      author = {Herring, J. R.},
      url = {http://library.usi.edu/record/199621},
      title = {Size analysis, visual estimation of phosphate and other  minerals, and preliminary estimation of recoverable  phosphate in size fractions of sediment samples from  drillholes GAT-90, Tybee Island, and GAS-90-2, Skidaway  Island, Georgia [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey :},
      recid = {199621},
      pages = {35 leaves :},
      address = {[Denver, CO] :},
      year = {1991},
}