Washington | Denver, CO U.S. G.P.O. | For sale by the Books and Open-File Reports Section, U.S. Geological Survey 1987 .
xiii, 222 p. , "A summary of the results of the Physical Properties Investigation of Viking Lander 1 and 2 during the Viking 1975 project." | "Prepared on behalf of the National Aeronautics and Space Administration." | Maps on 2 folded leaves in pocket. 29 cm..

By Hodges, Carroll Ann..
Washington | Denver, CO U.S. G.P.O. | For sale by U.S. Geological Survey, Map Division 1994 .
vi, 194 p. , Includes one folded color plate in pocket. 28 cm..