000 00280nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a338.5
_bRYA
100 _aRYAN, W J L
245 0 _aPrice theory
260 _aLondon
_bMacmillan
_c1977
650 _aPrice theory
942 _cBK
999 _c32792
_d32792