Descripción
Notas:"This study was supported by Contract/Grant No DE-FC01-94EW54069/R between the National Academy of Sciences and the U.S. Department of Energy"--Title page verso
Descripción Física:1 online resource (xv, 159 pages, 8 unnumbered pages of plates) : illustrations (some color), maps
Bibliografía:Includes bibliographical references (pages 131-134).
ISBN:0585244367
9780585244365
9780309514378
0309514371
0309172136
9780309172134