00261nam a2200097Ia 4500008004000000082001200040100001700052245003300069260005300102300000800155210210b1965   xxu||||| |||| 00| 0 eng d  a310/173  aSTOKES, W.L.  aEssentials of earth history.  aNDbPrentice-Hall of India Private Limitedc1965  a502