000 00271nam a2200109Ia 4500
008 221001s1967 xx 000 0 eng d
082 _a330 ECO
245 0 _aEconomic activity
260 _aLondon
_bCambridge University Press
_c1967
300 _axi, 323p.
942 _2ddc
_cBK
999 _c8234
_d8234