00351nam a2200133 a 450000500170000002000150001708200140003210000240004624500480007026000330011830000160015149000290016770000210019620251203090511.0  a0070990778  a330,bsal  aSalvatore, Dominick  aSchaum's outline of principles of economics  aSingapore: McGraw-Hillc1983  a314p.c24cm  aSchaumds outline series  aDiulio, eugene,A