00333nam a2200121Ia 4500008004100000020001800041082001500059100002400074245005100098250000800149260004200157300001200199190710s9999    xx            000 0 und d  a81-203-5134-9  a512.86 K13  aKunju, A Salahuddin 0aGroup theory and its applications in chemistry  a2nd  aDelhibPHI Learning Private Limc2015  axiv,222