000 00296nam a2200121Ia 4500
008 220201s1971 xx 000 0 eng d
082 _bWYH
100 _aWyhstra Ronald A.
245 0 _aIntroductory economics
260 _aLondon
_bHarper & Row Publication
_c1971
300 _a754
942 _2ddc
999 _c20520
_d20520