000 00287nam a2200121Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a339BIL;M
100 _aBilas, R.A
245 0 _aMicroeconomic theory
260 _bMcGraw-Hill Publication
_c1979
942 _cGB
999 _c23085
_d23085