Rain of iron and ice the very real threat of comet and asteroid bombardment.

Sonraí bibleagrafaíochta
Príomhchruthaitheoir:	Lewis, John S.
Formáid:	LEABHAR
Teanga:	Béarla
Foilsithe / Cruthaithe:	Reading, Massachussetts Addison-Wesley 1996
Ábhair:	Asteroids > Environmental aspects. Comets > Environmental aspects. Impact.