TY  - BOOK
AU  - Ruffin,Roy J., Gregory, Paul R.
AU  - x
TI  - Principles of macroeconomics : -
SN  - x 
U1  - 339/RUP  
PY  - 1983///
CY  - Illinois 
PB  - Scott, Foresman
KW  - Macroeconomics
ER  -