000 00321nam a2200157Ia 4500
020 _aNULL
082 _a530.11
100 _aGoyal, J.k. / Gupta, K.p.
245 0 _aTheory of Relativity
250 _a-
260 _aMeerut
_bKrishna Prakashan Mandir
300 _a282
500 _a1671
650 _a-
942 _cBK
999 _c8027
_d8027