00283nam a2200121Ia 4500008004100000082000800041082001000049100001400059100001600073245003500089260001400124260002300138230118s9999||||xx |||||||||||||| ||und||  a546  bSON/T  ap.lbsoni  bmohankatyal 0atextbook of organic chemistry   anew delhi  bsultan chand &sons