001: 4098
003: Starlibrary PMS 4.5
005: 20180420
020: ^aبدون
066: ^aSt.D
072: ^aMathematics
082: ^a510
100: ^aStephen A. Wiitala
240: ^aDiscrete mathematics aunifred approach
245: ^aDiscrete mathematics aunifred approach
260: ^c1987
650: ^aelectronic data processing -Mathematics
650: ^atitle