Mars as a planet
Subtitle: one of a series of NASA facts about the exploration of Mars
Series: NASA facts ; NF-60; NASA facts -- NF-60.
Publisher: U.S. National Aeronautics and Space Administration : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1975
Place of publication: Washington
Language: eng
Number of pages: 12
Subjects: Mars (Planet) -- Surface.