@article{160637,
      note = {Published in 1957 under title: Ships in the sky.},
      author = {Toland, John.},
      url = {http://library.usi.edu/record/160637},
      title = {The great dirigibles; their triumphs and disasters.},
      publisher = {Dover Publications},
      recid = {160637},
      pages = {352 p., [16] p. of plates :},
      address = {New York,},
      year = {1972},
}