00387nam a2200157 a 450000500170000002000150001708200170003210000290004910000180007824500300009625000120012626000320013830000280017063000140019863000170021220251203092019.0  a8174730249  a338.521bWAT  aWatson, Donald Stevenson  aGetz, Malcolm  aPrice Theory and its uses  a5th ed.  aNew DelhibA.I.T.B.S.c1996  axvi, 534 p.b22 cm.cPB  aEconomics  aPrice theory