000 nam a22 7a 4500
999 _c7380
_d7380
008 170822b xxu||||| |||| 00| 0 eng d
020 _a0297795562
100 _aLipsey G Richard
_93913
245 _aAn introduction to positive economics
260 _aLondon
_bButler & tanner ltd
_c1989