by Ross, Michael Elsohn,

[ 01. English Non Fiction ] Authors: Moore, Gustav,--ill. Series: Cycles Published by : Millbrook Press, (Brookfield, Conn. :) Physical details: 1 v. (unpaged) : col. ill. ; 24 cm. Subject(s): Geology --Periodicity. | Geology. Year : 2001 Item type : 01. English Non Fiction