@article{18512,
      recid = {18512},
      author = {Welling, William.},
      title = {Photography in America : the formative years, 1839-1900 /},
      publisher = {Crowell,},
      address = {New York :},
      pages = {xi, 431 p. :},
      year = {1978},
      note = {Includes index.},
      url = {http://library.usi.edu/record/18512},
}