00309nam a2200109 a 450000500170000008200130001710000060003011000330003624500550006926000490012430000260017320251203110200.0  a550bGOA  d_  aTandon, S.K. and Gupta, K.R.  aGoals for Earth Science Activities in the Nineties  aBangalorebGeological society of Indiac1990  avii,137p.c23 cm H.B.