@article{932404,
      note = {Includes index.},
      author = {Perlus, Barry.},
      url = {http://library.usi.edu/record/932404},
      title = {Celestial Mirror : The Astronomical Observatories of Jai  Singh II /},
      recid = {932404},
      pages = {1 online resource ( 168 p.)},
}