000 00271 a2200121 4500
080 _a551.1
_bT 993 E
245 1 _aEarth and its mysteries
_cby G.W. Tyrrell
260 _aLondon
_c1953
650 _aEarth
100 1 _aTyrrell, G.W.
_d
300 _a278 p.
901 _a44194
999 _c31141
_d31141