00812nam a2200217Ia 4500003000900000008004100009020002200050040001600072080001500088100002500103245017300128260003800301300001500339650002000354650001600374650003200390650001800422942000700440999001700447952013000464IN-BaIIA211028s9999    xx            000 0 eng d  a978-0-471-19338-8  cIIA Library  a523.4bSTE  aSteel, Duncan932735 0aRogue asteroids and doomsday cometsbthe search for the million megaton menace that threatens life on earthcDuncan Steel                                                 aNew YorkbJohn Wiley & Sonsc1995  axii, 308p.  aAsteroids94064  aComets9755  aExtinction (Biology)932736  aImpact932737  cBK  c17354d17354  00104070aBANbBANcGENd2009-06-27eBSS   g295.00l0o523.4/ STEp18276r2021-11-05v295.00w2009-06-27yBKGRs. 295.00