000 00281nam a2200121Ia 4500
008 210804s1978||||xx |||||||||||||| ||und||
041 _amal
100 _aKesavachari N
245 0 _aBhoogarbha jala vijnanam
250 _a1
260 _aNil
_bGovernment of india
_c1978
942 _cBK
999 _c7435
_d7435