000 00390nam a2200145Ia 4500
008 190329s9999||||xx |||||||||||||| ||und||
040 _aNITIL
_cNITIL
082 _221st
_a609
_bS329A
100 _aSansar Chand
245 0 _aAavishkar jinhone duniyan ko badal diya
260 _aDelhi
_bSanskriti Sahitya
_c1995
300 _a64p.
650 _aINVENTIONS HISTORY; INVENTIONS
942 _cBKS
999 _c68269
_d68269