Title
Global mega-geomorphology [microform] : proceedings of a workshop / sponsored by the National Aeronautics and Space Administration and the International Union of Geological Sciences and held at Sunspace Ranch, Oracle, Arizona, January 14-16, 1985 ; Robert S. Hayden, editor.
Published
[Washington, D.C. : National Aeronautics and Space Administration, Scientific and Technical Information Branch ; Springfield, Va. : For sale by the National Technical Information Service, 1985]