00275nam a2200133Ia 4500020000900000082001100009100003000020245002500050250000600075260003700081300000800118500000900126650000600135  aNULL  a530.11  aGoyal, J.k. / Gupta, K.p. 0aTheory of Relativity  a-  aMeerutbKrishna Prakashan Mandir  a282  a1671  a-