00297nam a2200109Ia 450000500170000000800410001708200120005810000150007024500500008526000440013530000080017920260224041035.0260224s9999||||xx |||||||||||||| ||und||  a510 AYR  aAyres, F.  0aTheory and problems of mathematics of finance  aSingapore : Mc-Graw-Hill Book Co.c1983  a230