@article{20031,
      author = {Seeman, Mark F.},
      url = {http://library.usi.edu/record/20031},
      title = {The Hopewell interaction sphere : the evidence for  interregional trade and structural complexity /},
      publisher = {Indiana Historical Society,},
      recid = {20031},
      pages = {p. 235-438, [1] p. of plates :},
      address = {Indianapolis :},
      year = {1979},
}