00441nam a2200145Ia 4500020001800000082001700018100002100035245003300056260004100089650001300130700001900143942000700162999001500169952011100184  a9780195642117  a530.11 HAW/N  aHawking, Stephen 4aThe Nature of Space And Time  bOxford University PressaDelhic1999  aUniverse  aPenrose, Roger  cBK  c3183d3183  001040708PHYaGBCTLbGBCTLcF23d2023-12-06g195.00l2o530.11 HAW/Np29124r2025-06-25s2025-06-12yBK