00432nam a2200181 a 450000500170000002000180001708200160003510000240005124500150007526000260009030000230011660000080013963000250014763000330017263000330020585600060023885600060024420251203114844.0  a9788129147431  a530.11bEIN  aEinstein, Albertd_  aRelativity  aNew DelhibRupac2017  a152 p.c24 cm.bPB  bc_  aRelativity (Physics)  aSpecial relativity (Physics)  aGeneral relativity (Physics)  f_  a_