00278nam a2200109 a 450000500170000002000150001708200230003210000160005524500280007126000410009930000280014020251203091937.0  a9971966565  a530.15222,bD, Tun  aTung, Wu-Ki  aGroup theory in Physics  aPhiladelphiabWorld Scientificc1985  axviii,344p.c26 cm.bHB