TY  - GEN
AU  - O'SULLIVAN, A.
AU  - SHEFFRIN, S. M., PEREZ, S. J.
TI  - Economics: Principles, Applications, and Tools
SN  - 0-13-157302-0
U1  - 330 OSU 
PY  - 2008///
CY  - New York
PB  - Pearson Prentice Hall
ER  -