00285    a2200109   450000500170000002000180001710000170003524500190005226000320007130000550010370000170015820250628113014.0  a0-8016-5151-4  aTRUETT, L. J  aMicroeconomics  aTorontobTimes Mirrorc1987  axxii, 533p.: ill; Chat, Figure, TablebIndexc25.5  aTRUETT, D. B