00553nam a2200169Ia 4500003000900000008004100009020001800050040001600068080001500084100001300099245014700112260004800259300001400307650002300321650002000344650001900364IN-BaIIA211028s9999    xx            000 0 eng d  a0-521-37140-6  cIIA Library  a539.1bSAL  aSalam, A 0aUnification of fundamental forcesbthe first of the 1988 Dirac memorial lecturescA. Salam                                                      aCambridgebCambridge University Pressc1990  aix, 143p.  aFundamental forces  aNuclear physics  aQuantum theory