000 00279nam a2200121Ia 4500
008 211209s1976 xx 000 0 und d
041 _aeng
082 _aGUP
100 _aGUPTA, R S
245 _aPLANT ECONOMICS
260 _bNATIONAL PRODUCTIVITY COUNCIL
_c1976
300 _a54
999 _c22727
_d22727