000 00231nam a22000857a 4500
999 _c11144
_d11144
008 180924b ||||| |||| 00| 0 eng d
100 _aGOYAL, K. KAUSAL
_96908
245 _aSTEPHEN HAWKING
260 _aNEW DELHI
_bPIGEON PUBLICATION
_c2018