000			00346nam a2200157Ia 4500
008			190201s9999 xx 000 0 und d
082			_a658
082			_b5 R449
100			_aRiggs James L.
245		0	_aProduction Systems: Plan
250			_aThird
260			_aNew Delhi
260			_bWiley Eastern
260			_c1976
300			_aXV- 649
999			_c21644 _d21644