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008 100917s9999 xx 000 0 und d
082 _b31916
100 _a---
245 _aInventions that changed the world part 2
260 _bNational Book Trust New Delhi
_c1972
365 _b1.5
520 _a---
630 _aInventions that changed the world part 2
650 _a---
730 _aInventions that changed the world part 2
942 _cBOOK
999 _c637310
_d637307