000 00399nam a2200157Ia 4500
008 190329s9999||||xx |||||||||||||| ||und||
020 _a9789350482629
040 _aNITIL
_cNITIL
082 _221st
_a925
_bS531S
100 _aSharma, Mahesh
245 0 _aStephen Hawking
_cMahesh Sharma
260 _aNew Delhi
_bPrabhat Paperbacks
_c2016
300 _a143p.
650 _aSCIENTISTS
942 _cBKS
999 _c81769
_d81769