TY  - BOOK
AU  - Welch, J. Patrick
AU  - Welch, Gerry F.
TI  - Economics: theory and practice 
SN  - 9780471679462
AV  - HB 171.5 .W45 2007 
PY  - 2007///
CY  - Hoboken
PB  - John Wiley and Sons
N1  - Includes index
ER  -