TY  - BOOK
AU  - Schiller,Bradley R.
TI  - Essentials of economics
SN  - 0073402796
U1  - 330 
PY  - 2007///
CY  - Boston
PB  - McGraw-Hill/Irwin
KW  - Economía
UR  - http://www.loc.gov/catdir/toc/ecip0612/2006012950.html
ER  -