TY - BOOK AU - Stilwell,John A. AU - Lipsey,Richard G. AU - Clarke,Rosemary TI - Workbook: to accompany the fifth edition of 'An introduction to positive economics' U1 - 330 23 PY - 1979/// CY - London PB - Weidenfeld & Nicolson KW - Economics KW - Problems, exercises, etc ER -