00344nam a2200133Ia 4500020000900000082001100009100003100020245009200051250000800143260003700151300000800188500000800196650000600204  aNULL  a531.11  aGupta, B. D. / Prakash, S. 0aRelativistic Mechanics: For Honours & Post Graduate Students of All Indian Universities  a2nd  aMeerutbPragati Books Pvt . Ltd.  a304  a240  a-