Vrielynck, Bruno The changing face of the earth The break - up of pangaea and continental drift over the past 250 million years in ten steps - Paris Commission for the Geological Map of the World Unesco Unesco 2003 - 32p. Illustration 21cm x 27cm CD missing ISBN: 9789231039003 9231039008 Subjects--Topical Terms: Continental driftPlate tectonicsSea - Floor spreadingPangaea (super continent) Dewey Class. No.: 551.136 / VRI