(1976). Mechanical devices: A compilation / National Aeronautics and Space Administration.
Cita Chicago (17th ed.)Mechanical Devices: A Compilation / National Aeronautics and Space Administration. 1976.
Cita MLA (9th ed.)Mechanical Devices: A Compilation / National Aeronautics and Space Administration. 1976.
Atenció: Aquestes cites poden no estar 100% correctes.