TY  - BOOK
AU  - Barkley, Andrew.
AU  - Barkley, Paul W.
TI  - Principles of agricultural economics by 
SN  - 9781138914100
U1  - 338.1 BAR-A 
PY  - 2016///
CY  - London
PB  - Routledge
KW  - United States
KW  - Agriculture--Economic aspects
KW  - Agriculture -- Economic aspects -- United States
ER  -