@article{198570,
      recid = {198570},
      author = {Markewich, Helaine W.},
      title = {Progress report on chronostratigraphic and paleoclimatic  studies, Middle Mississippi River Valley, eastern Arkansas  and western Tennessee [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      address = {[Reston, Va.?] :},
      pages = {iii, 61 leaves :},
      year = {1993},
      note = {Distributed to depository libraries in microfiche.},
      url = {http://library.usi.edu/record/198570},
}