000 00314nam a2200121Ia 4500
008 240112s9999 xx 000 0 und d
082 _a608
_bR
100 _aRajendra Kumar 'Rajiv'
245 0 _aWorld-famous discoveries
260 _a New Delhi
_bPustak Mahal
_c1994
650 _aInventions & patents
942 _cBK
999 _c52533
_d52533