Gregory, Paul R.

Comparative Economic Systems Gregory, Paul R. 1995 Comparative economic systems Gregory, Paul R 1995 Comparative economic systems Gregory, Paul R. 1992 Comparative economic systems Gregory, Paul R. 1992 Comparative economic systems Gregory, Paul R. 1989 Economics Gregory, Paul R. 1994 Essentials of economics Gregory, Paul R. 1996 Essentials of economics Gregory, Paul R 1990 Principes of economics Gregory paul R. 1938 Principles of Economics Ruffin, Roy J. 1997 Principles of economics Gregory, Paul R. 1997 Principles of economics Roy Ruffin 1997 Principles of economics Ruffin, Roy 1983 Principles of economics Gregory, Paul R. Year not listed Principles of macroeconomics Ruffin, Roy 1990 Principles of macroeconomics Gregory, Paul R. Year not listed Principles of microeconomics Ruffin, Roy J. 1986 Principles of microeconomics Ruffin, Roy 1986 Solvient economic structure and performance Gregory, Paul R. 1986 The global economy and its economic systems Gregory, Paul R. 2014