00590nam a2200181Ia 4500003000900000008004100009020002200050040001600072080001500088100001800103245017300121260003800294300001500332650001400347650001100361650002500372650001100397IN-BaIIA211028s9999    xx            000 0 eng d  a978-0-471-19338-8  cIIA Library  a523.4bSTE  aSteel, Duncan 0aRogue asteroids and doomsday cometsbthe search for the million megaton menace that threatens life on earthcDuncan Steel                                                 aNew YorkbJohn Wiley & Sonsc1995  axii, 308p.  aAsteroids  aComets  aExtinction (Biology)  aImpact