@article{10203,
      recid = {10203},
      author = {Sloop, John L.},
      title = {Liquid hydrogen as a propulsion fuel, 1945-1959 /},
      publisher = {Scientific and Technical Information Office, National  Aeronautics and Space Administration,},
      address = {Washington :},
      pages = {325 p. :},
      year = {1978},
      url = {http://library.usi.edu/record/10203},
}