International exploration of Mars : a special bibliography.

Washington, DC : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1991

Readings in systems engineering /

Washington, DC : NASA Scientific and Technical Information Program, 1993

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[Washington, D.C. : NASA, Office of Scientific and Technical Information : Supt. of Docs., U.S. G.P.O., distributor, 1963