America at the threshold
America at the threshold report
of the Synthesis Group on America's space exploration initiative.
- Washington, D.C. Supt. of Docs., U.S. G.P.O. [1991]
- vi, 114, 67 p. ill. (some col.) 28 cm.
"Thomas P. Stafford, Chairman Synthesis Group" -- p. [iii]. "May 6, 1991." -- p. [ii].
Includes bibliographical references.
United States National Aeronautics and Space Administration.
Space flight to Mars.
NASA SPACE PROGRAMS
MARS PROBES
MARS LANDING
"Thomas P. Stafford, Chairman Synthesis Group" -- p. [iii]. "May 6, 1991." -- p. [ii].
Includes bibliographical references.
United States National Aeronautics and Space Administration.
Space flight to Mars.
NASA SPACE PROGRAMS
MARS PROBES
MARS LANDING