00283nam a2200121Ia 4500008004100000082000800041082001000049100002000059245002400079260001100103260003800114260000900152230118s9999||||xx |||||||||||||| ||und||  a621  bCAT/T  ak.wbcattermole 0atransistor circuits  alondon  bthe english language book society  c1959