00361nam a22001457a 4500 1939 1939 200207b ||||| |||| 00| 0 eng d 621.381 L5665 1536 Lenihan, J. M. A. A Text book of electronics 1st London EUP 1948 211p. Electronics BK 0 0 ddc 0 621_381000000000000_L5665 0 5017 CL CL 1953-03-13 A. H. Wheeler 621.381 L5665 01644 2020-02-07 BK