00454nam a2200169Ia 4500003000900000008004100009020001800050040001600068080001600084100002800100245006900128260003700197300001000234650001300244650001200257650001500269IN-BaIIA211028s9999    xx            000 0 eng d  a0-486-63282-2  cIIA Library  a530.12bBER  aBergmann, Peter Gabriel 0aIntroduction to the theory of relativitycPeter Gabriel Bergmann  aCanadabDover Publicationsc1976  a307p.  a Physics  aGravity  aRelativity