000 00271nam a2200121Ia 4500
008 220201s1980 xx 000 0 eng d
082 _a670
_bPAN
100 _aPandey, PC
245 0 _aProduction engg science
260 _bStandard
_c1980
300 _a677
942 _2ddc
999 _c81817
_d81817