000			00335nam a2200145Ia 4500
008			240723s9999 xx 000 0 und d
041			_aEnglish
084			_aB _bK7
100			_aN Williams
245		0	_aTopics in Operational Research
260			_aDelhi _bPitman _c1967
300			_ap.180
650			_aMathematics
942			_cBK
999			_c302879 _d302879