TY  - BOOK
AU  - Peterson Willis L.
TI  - Principles of economics :  Macro   
T2  - Irwin series in economics
SN  - 0256023352
U1  - X:72, L1 
PY  - 1980///
CY  - Illinois
PB  - Richard D. Irwin        
KW  - Macro Economics
ER  -