000 00339nam a2200121Ia 4500
008 170101s1963 xx 000 0 und d
082 _a338.5 MAC
100 _aMaomillan Company
245 0 _aProgrammed Instruction in Economics Text Supply and Demand
260 _aNew york
_bThe Macmilan Co.
_c1963
300 _a76 p.
942 _2ddc
_cB
999 _c312966
_d312966