00380nam a22001577a 4500 4380 4380 200803b ||||| |||| 00| 0 eng d 621.373 F361 3536 Ferns, J. L Meter engineering 5th ed. London Pitman 1949 x,350 p. 13.08 Electric Meters BK 0 1 ddc 0 621_373000000000000_F361 0 12753 CL CL 1955-12-08 A. H. Wheeler 621.373 F361 02206 2020-08-03 BK