000 00288nam a2200097 4500
245 _aEinstein's universe : a guide to the theory of relativity
_cNigel Calder
100 _aCalder,Nigel
260 _aHarmondsworth
_bPenguin Books
_cc1979
300 _a254p. :ill.; 18cm.
082 _a530.11
_bCAL
999 _c59743
_d59743