000 00267nam a2200121Ia 4500
008 221001s1968 xx 000 0 eng d
082 _a032 THE
100 _aWALPOLE (RONALD E)
245 0 _aAdvanced economics
260 _c1968
300 _a136
942 _2ddc
_cBK
999 _c48379
_d48379