@article{232217,
      recid = {232217},
      author = {Powars, David S.},
      title = {The effects of the Chesapeake Bay impact crater on the  geologic framework and the correlation of hydrogeologic  units of southeastern Virginia, south of the James River /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      address = {Reston, Va. :},
      pages = {iv, 53 p. :},
      year = {2000},
      note = {"Prepared in cooperation with the Hampton Roads Planning  District Commission."},
      url = {http://library.usi.edu/record/232217},
}