TY  - BOOK
AU  - O'Sullivan, Arthur
AU  - Sheffrin, Steven M.
TI  - Economics: Principles and tools 
SN  - 9780131481541
AV  - HB 171.5 .O84 2006
PY  - 2006///
CY  - Upper Saddle River NJ
PB  - Pearson
KW  - Economics
ER  -