000			00373nam a2200169Ia 4500
003			0STCL
008			150530s9999 xx 000 0 und d
040			_aSTCL _cSTCL
100			_aHamdy Taha, A.
245			_aOpertions research an introduction
250			_aSecond
260			_c1976
546			_aEnglish
942			_2ddc _cBK
999			_c842 _d842
005			20220125160206.0