TY  - BOOK
AU  - OʾSullivan,Arthur
AU  - Sheffrin,Steven M.
TI  - Economics: principles and tools 
SN  - 0132063689 (alk. paper)
AV  - HB171.5 .O84 1998
PY  - 1998///
CY  - Upper Saddle River, N.J.
PB  - Prentice Hall
KW  - Economics
ER  -