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040 _aNITIL
_cNITIL
082 _221st
_a530.11
_bL253W
100 _aLandau, L
245 0 _aWhat is the theory of relativity
_cL Landau
260 _aMoscow
_bForeign Languages Publishing House
_c[n.d]
300 _a63p.
650 _aRelativity
700 _aRumer, Y
942 _cBKS
999 _c58465
_d58465