Não informado. (1977). NASA Conference Publication. National Aeronautics and Space Administration.
Cita Chicago Style (17a ed.)Não informado. NASA Conference Publication. Washington: National Aeronautics and Space Administration, 1977.
Cita MLA (8a ed.)Não informado. NASA Conference Publication. National Aeronautics and Space Administration, 1977.
Precaución: Estas citas no son 100% exactas.