@article{211991,
      author = {Ryan, James R.},
      url = {http://library.usi.edu/record/211991},
      title = {Picturing empire : photography and the visualization of  the British Empire /},
      publisher = {University of Chicago Press,},
      recid = {211991},
      pages = {272 p. :},
      address = {Chicago :},
      year = {1997},
}