00448nam 2275296 450000100060000000300230000600500090002900800410003808200080007907200260008702000180011310000130013126000310014425000060017524500360018165000260021765000250024375296StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a621 aConnectors and System a0-7506-5269-1 aRoberts. bNEWNES-Butterworths c2001 a2 aTelephone Installation HandBook aConnectors and System aThe telephone System