@article{17896,
      author = {Allan, Wilfred John Davy.},
      url = {http://library.usi.edu/record/17896},
      title = {The observer's book on radio navigation,},
      publisher = {Chemical publishing co., inc.,},
      recid = {17896},
      pages = {1 p. l., 7-106 p.},
      address = {Brooklyn, N. Y.,},
      year = {1941},
}