00445nam a22001697a 4500 40464 40464 250320b ||||| |||| 00| 0 eng d 0023541261 Hayne, Paul T. Microeconomics / Paul Heyne. 2nd ed. Ontario Macmillan publishing company 1991 xiv, 395p. ill Include index Microeconomics BK HB172 .H25 1991