00394nam a2200145Ia 4500008004100000020001000041040001500051041001200066082001600078100002100094245005700115250001200172260004800184300001600232230917s9999||||xx |||||||||||||| ||und||  cPOU18  e2156aMAIN  aEnglish  a551.1 J377E  aJeffreys, Harold 0aEarth: Its origins history and physical constitution  a6th ed.  aCambridgebCambridge University Pressc1976  axii, 574 p.