001: 2518
003: Starlibrary PMS 4.5
005: 20180420
020: ^a0-07-040769-x
066: ^ajo.S
072: ^aInteroduction to Switch Technology
082: ^a621
100: ^ajohn r. mason
240: ^aSwitch engineering handbook
245: ^aSwitch engineering handbook
260: ^c1993
650: ^aPrecision Snap-Action Switches
650: ^aRotary Switches