000 00251pam a2200109a 44500
008 160408b xxu||||| |||| 00| 0 eng d
040 _cIITK
041 _aeng
082 _a530.11 Un2 V.5 Cop.3
_bCop.3
245 1 _aunderstanding space time
942 _cBK
999 _c311105
_d311105