000 00270nam a2200097Ia 4500
008 120229s9999 xx 000 0 und d
082 _aH 509.54 MUL
100 _aMuley, Gunakar
245 _aBharatiya vigyan ki kahani
260 _bIshan Prakashan
_aNew Delhi
_c1990
999 _c120786
_d120786