00419nam a2200145Ia 4500003000900000008004100009020001800050040001600068080001600084100001900100245009700119260003600216300001000252650001100262IN-BaIIA211028s9999    xx            000 0 eng d  a0-684-85255-1  cIIA Library  a523.64bLEV  aLevy, David H. 0aCometsbcreators and destroyerscDavid H. Levy                                                aNew YorkbTouchstone Bookc1998  a256p.  aComets