@article{4003,
      author = {Williams, Alice Simms.},
      url = {http://library.usi.edu/record/4003},
      title = {Late-glacial--postglacial vegetational history of the  Pretty Lake region, northeastern Indiana.},
      publisher = {U.S. Govt. Print. Off.,},
      recid = {4003},
      pages = {iii, 23 p.},
      address = {Washington,},
      year = {1974},
}