000 00249nam a2200109Ia 4500
008 211209s1977 xx 000 0 und d
041 _aeng
100 _aDAVIES I R
245 _aMANAGERIAL ECONOMICS
260 _aLONDON
_bTMH
_c1977
300 _a297
999 _c100435
_d100435