00412nam a2200133Ia 4500008004100000082001400041100001400055245004800069260004400117300001000161942000700171952008500178999001500263240817s9999    xx            000 0 und d  a553.68 Jo  aAuden.J.B 0aBulletins of the geological survey of india  c1950a Calcuttab Govt. of india press.  a48 p.  cBK  00104070aTCLbTCLd2024-08-21l0o553.68 Jop8059r2024-08-21w2024-08-21yBK  c7451d7451