TY  - BOOK
AU  - RUFFIN,ROY J.
AU  - GREGORY,POUL R.
TI  - PRINCIPLES OF MACRECONOMICS, 5th  ed / 
U1  - 339 
PY  - 1992///
CY  - [S.N] : 
PB  - HARPER COLLINS COLLEGE PUBLISBERS ، 
KW  - ECONOMICS
KW  - MACROECONOMICS
KW  - ECONOMIC
KW  - MARKETING - MANAGEMENT
ER  -