TY  - BOOK
AU  - O` sullivan,authur.
AU  - Steven M.Sheffrin.
AU  - Stephen J.perez
TI  - Macroeconomics: principles, applications and tools
SN  - 0136092721
AV  - HC 58, OSU 2010.
PY  - 2010///
CY  - UK
PB  - Pearson Education inc
ER  -