00000nam a2200000 a 4500 20251202164140.0 339 PET Peterson, Willis L Principles of economics macro 4th ed. Ontario R.D. Irwin 1980 xi, 401 p. 22 cm. HB Irwin Series in economics Macroeconomics Eng 100 010 _ 8990 W 9132 C 1264 1264 2 0 0 0 PU PU 1998-04-08 0 339 PET 8990 BK 0 0 0 0 PU PU 1998-04-08 0 339 PET 9132 BK