00287nam a2200133Ia 4500008004100000082000800041082000800049100000600057100001400063245002400077260001500101260002800116260000900144240117s9999||||xx |||||||||||||| ||und||  aM/T  b530  am  amathachan 0atextbook of physics  aeranakulam  bvidyarthi mithram press  c1996