Mars,
       Peter Cattermole, ISBN 0-412-44140-3

   NASA Atlas of the Solar System,
       Greeley and Batson, ISBN 0-521-56127-2

   New Solar System,
       Beatty and Chaikin, ISBN 0-933346-55-7

   Planetary Landscapes,
       Ronald Greeley, ISBN 0-412-05431-0

   Smithsonian Guide to the Planets,
       Thomas Watters, ISBN 0-02-860404-0

   Uncovering the Secrets of the Red Planet,
       Paul Raeburn, ISBN 0-7922-7373-7

   Water on Mars,
       Michael Carr, ISBN 0-19-509938-9