TY  - BOOK
AU  - Barkley, Andrew P.,
AU  - Barkley, Paul W.,
TI  - Principles of agricultural economics
SN  - 9780415540698;9780415540704 (pbk);9780203371145 (ebk)
PY  - 2013///
CY  - London ;;New York
PB  - Routledge
KW  - Agriculture
KW  - Economic aspects
ER  -