000 00278nam a2200121Ia 4500
008 211209s1977 xx 000 0 und d
041 _aeng
082 _a658.403 4 N77 LOC
100 _aLOCKETT A G
245 _aGUIDE TO OPERATIONAL RESEARCH
260 _c1977
300 _a205
999 _c12978
_d12978