000 00297nam a2200109Ia 4500
008 151128s9999 xx 000 0 und d
041 _aENG
100 _aSalwi, Dilip
245 _aInventions that’s shaped the world
260 _c1985
_aNew DelhiMadhuban Educational Books
942 _2udc
_cBK
999 _c29182
_d29182