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Principles of economics
Ruffin, Roy J.; Gregory, Paul R. - 2001 - 7. ed
Persistent link: https://www.econbiz.de/10001501769
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Principles of microeconomics
Ruffin, Roy J. - 2001 - 7. ed
Persistent link: https://www.econbiz.de/10001501770
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Principles of microeconomics
Ruffin, Roy J.; Gregory, Paul R. - 1986 - 2. ed
Persistent link: https://www.econbiz.de/10000702929
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Basic economics
Gregory, Paul R.; Ruffin, Roy J. - 1989
Persistent link: https://www.econbiz.de/10000783366
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Basic macroeconomics
Gregory, Paul R.; Ruffin, Roy J. - 1989
Persistent link: https://www.econbiz.de/10000773013
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Essentials of economics
Gregory, Paul R. - 1999 - 4. ed
Persistent link: https://www.econbiz.de/10000671716
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Principles of economics
Ruffin, Roy J.; Gregory, Paul R. - 1997 - 6. ed
Persistent link: https://www.econbiz.de/10000947966
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Essentials of economics
Gregory, Paul R. - 1996 - 3. ed
Persistent link: https://www.econbiz.de/10000936913
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Essentials of economics
Gregory, Paul R. - 2002 - 5. ed
Persistent link: https://www.econbiz.de/10001581643
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Principles of microeconomics
Ruffin, Roy J.; Gregory, Paul R. - 1997 - 6. ed
Persistent link: https://www.econbiz.de/10000585001