00333nam a2200133Ia 4500008004100000082001400041100001900055245003700074260003800111300000800149650001200157650001800169653001200187170901s1973    xx            000 0 und d  a530bT31T  aTheraja, B. L. 0aText Book of Engineering Physics  aNew DelhibS. Chand and Co.c1973  a775  aPhysics  aPure Sciences  aPhysics