00340nam a2200145Ia 4500 Hellyer//H.W/ Sinclair/I.R Electrical Engineering RB Radio And Television Radio And Television Bulter Worth London 1980 621.3 120 ENGLISH 32339 32339 0 0 0 0 AFT CRCE CRCE 1465 | 19 2023-03-17 0 621.3 AFT4062 2023-03-17 2023-03-17 RB 0 0 0 0 AFT CRCE CRCE 1472 | 19 2023-03-17 0 621.3 Hel/Sin AFT4068 2023-03-17 2023-03-17 RB