A Mars 1984 mission
By: report of the Mars Science Working Group.
Series: TM -- 78419.; NASA technical memorandum -- 78419.
Publisher: National Aeronautics and Space Administration
Published: 1977
Place of publication: [S.l.]
Language: eng
Number of pages: 174
Subjects: Space flight to Mars.; Mars (Planet) -- Exploration.
Notes: Cover title.

"July 1977."