TY  - BOOK
AU  - John E Sayre; 
TI  - Principles of microeconomics
SN  - 9780070385467
AV  - HB172 .S29 2012
PY  - 2004///
CY  - Toronto : 
PB  - McGraw-Hill Ryerson, 
KW  - Microeconomics.
ER  -