000 00283nam a2200121Ia 4500
008 230223s9999 xx 000 0 und d
082 _a16/1987
100 _aSanjeev Singh
245 0 _aRegional Science Centre, Bhopal
260 _c1987
502 _cProf.D. C.Thapar
942 _cTH
999 _c22057
_d22057