TY  - BOOK
AU  - O'Sullivans 
AU  - Shefferin, Steven M.
TI  - Economics : principles and tools 
SN  - 0132063689 
U1  - 330 OSU 1998 
PY  - 1998///
CY  - New Jersey
PB  - Prentice-Hall Inc.
KW  - Economics
N1  - Includes index; Includes bibliographical references
ER  -