@article{744444,
      recid = {744444},
      author = {Launius, Roger D., and Jenkins, Dennis R.,},
      title = {To reach the high frontier a history of U.S. launch  vehicles / [electronic resource] :},
      pages = {1 online resource (528 pages) :},
      note = {Includes index.},
      url = {http://library.usi.edu/record/744444},
}