Descripción
Notas:Support was provided by the U.S. Department of Energy, National Aeronautics and Space Administration, National Science Foundation, and U.S. Geological Survey.
Committee chair : Robin Brett.
Descripción Física:1 online resource (xii, 114 pages) : illustrations
Bibliografía:Includes bibliographical references (pages 92-103).
ISBN:0585028702
9780585028705