@article{480145,
      recid = {480145},
      author = {Greenberg, Joel S. and Hertzfeld, Henry.},
      title = {Space economics [electronic resource] /},
      publisher = {American Institute of Aeronautics and Astronautics,},
      address = {Washington, D.C. :},
      pages = {xv, 437 p. :},
      year = {1992},
      url = {http://library.usi.edu/record/480145},
}