00618nam a2200181Ia 4500003000900000008004100009020001800050040001600068080001600084245016900100260003600269300001600305650001800321650000900339700003200348700003100380700002500411IN-BaIIA211028s9999    xx            000 0 eng d  a0-387-94650-0  cIIA Library  a523.64bCOM 0aComets and the origin and the evolution of lifecedited by Paul J. Thomas, Christopher F. Chyba and Christopher P. McKay                                              aNew YorkbSpringer-Verlagc1997  axiii, 296p.  aComets-origin  aLife  aChyba, Christopher, F., ed.  aMcKay, Christopher P., ed.  aThomas, Paul J., ed.