Basic economics : study guide
[NT 59711] by:
Gregory, Paul R.; Parker, Jeffrey; Ruffin, Roy J.
([NT 1579] Language materials, printed)
, [accompany the text]
Basic microeconomics
[NT 59711] by:
Ruffin, Roy J.; Gregory, Paul R.
([NT 1579] Language materials, printed)
Basic macroeconomics
[NT 59711] by:
Ruffin, Roy J.; Gregory, Paul R.
([NT 1579] Language materials, printed)