000 00281nam a2200097Ia 4500
008 120224s9999 xx 000 0 und d
082 _a011.424
_bWAG
100 _aWagner H.M
245 _aPrinciples of operation research
260 _bPrentice- Hall of India
_aNew Delhi
_c1977
999 _c141254
_d141254