00602cam a22001932  45000010008000000030008000080050017000160080041000330100017000740400028000910500013001190820015001321000045001472450100001922600031002923000037003236500025003607000023003858727551BD-DhUL20140921170129.0980609s1923    enka          000 0 eng    a   23010626   aDLCcCarPdDLCdBD-DhUL00aQC6b.K6  a530.1bKOM1 aKopff, August,d1882- [from old catalog]04aThe mathematical theory of relativity /cA. Kopff ; translated by H. Levy, with three diagrams.  aLondon :bMethuen, c1923.  aviii, 214 p. :bdiagrs.,c19 cm. 0aRelativity (Physics)1 aLevy, Hyman, etr.