000 00324nam a2200133Ia 4500
008 221001s1971 xx 000 0 eng d
020 _a0043301983
082 _a338.522 TUR
100 _aTurvey, Ralph
245 0 _aDemand and supply
260 _aLondon
_bGeorge Allen & Unwin
_c1971
300 _a127p.
942 _2ddc
_cBK
999 _c18739
_d18739