TY  - BOOK
AU  - Stafford,Thomas P.
ED  - Synthesis Group (U.S.)
TI  - America at the threshold: report
PY  - 1991///]
CY  - Washington, D.C.
PB  - Supt. of Docs., U.S. G.P.O.
KW  - United States
KW  - National Aeronautics and Space Administration
KW  - Local
KW  - Space flight to Mars
KW  - NASA SPACE PROGRAMS
KW  - MARS PROBES
KW  - MARS LANDING
N1  - "Thomas P. Stafford, Chairman Synthesis Group" -- p. [iii]; "May 6, 1991." -- p. [ii]; Includes bibliographical references
ER  -