@article{N 91-13842 - N 91-13855,
      note = {Distributed to depository libraries in microfiche.},
      author = {Nelson, Mark, and Soffen, Gerald A.},
      url = {http://library.usi.edu/record/179769},
      title = {Biological life support technologies commercial  opportunities : proceedings of a workshop sponsored by the  NASA Office of Commercial Programs and held at the  Biosphere 2 Project Site near Tucson, Arizona, October  30-November 1, 1989 / [microform] :},
      publisher = {National Aeronautics and Space Administration, Office of  Management, Scientific and Technical Information Division  ;},
      number = {N 91-13842 - N 91-13855},
      recid = {179769},
      pages = {vi, 110 p. :},
      address = {Washington, D.C. :},
      year = {1990},
}