TY  - GEN
AU  - O'Sullivan, Arthur.
AU  - Sheffrin Steven M
TI  - Economics : : principles and tools / 
SN  - 0131968726 (pbk.) 
AV  - HB171.5 
PY  - 2006///
CY  - Upper Saddle River, N. J. : , [Great Britain]
PB  - Pearson/ Prentice Hall, Pearson Education International
KW  - Economics
N1  - Previous ed.: 2003; Includes index
ER  -