00405nam a2200145 a 450000500170000002000150001708200160003210000190004824500700006726000400013730000200017749000310019763000170022863000140024520251202164125.0  a0805331530  a539.b7 GEO  aGeorgi, Howard  aLie algebras in particle physics:from isospin to Unified theories  aMenlo ParkbBenjamin/Cummingsc1982  a255p, 22cm.bHB  aFrontiers in physicsdv.54  aLie algebras  aParticles