000 00404nam a2200157Ia 4500
008 190329s9999||||xx |||||||||||||| ||und||
020 _a9788183520362
040 _aNITIL
_cNITIL
082 _221st
_a925
_bH393C
100 _aHawking, Stephen
245 0 _aChallenge to impossible
_cStephen Hawking
260 _aNew Delhi
_bMahaveer
_c2012
300 _a128p
650 _aPHYSICS; SPACE
942 _cBKS
999 _c74889
_d74889