TY  - BOOK
AU  - McConnell, Campbell. R
TI  - Economics Principles, Problems, and Policies 
SN  - 978-0-07-351144-3
U1  - 330 
PY  - 2012///
CY  - New York
PB  - McGraw Hill, 
KW  - Economics Policies and Principles;
ER  -