TY  - GEN
AU  - SAYRE, J. E.
AU  - MORRIS, A. J.
TI  - Principles of Microeconomics
SN  - 978- 0-07-098405-9
U1  - 338.5 SAY 
PY  - 2009///
CY  - New York
PB  - McGraw Hill
ER  -