001: 2507
003: Starlibrary PMS 4.5
005: 20180420
020: ^aبدون
066: ^aFr.I
072: ^adiggital electionics
082: ^a621
100: ^aFredrick. J. Hill
240: ^aIntroduction toswitching theory and logical design
245: ^aIntroduction toswitching theory and logical design
260: ^c1981
650: ^alogic desing
650: ^aswitching circuits