000 00321 a2200145 4500
020 _a1857582225
082 _a330.1
_bPOW
090 _c514
_d584
100 _aPowell,Ray
245 _aA level economics
260 _aLondon
_bLetts
_c1993
_g1982
300 _a392p.
_c29cm
650 _aSYSTEMS AND THEORIES
942 _cSR
999 _c29708
_d29708