TY  - BOOK
AU  - Heady,Earl Orel
TI  - Economic models and quantitative methods for decisions and planning in agriculture: Proceedings of an east-west seminar
AV  - S561 H38
PY  - 1971///
CY  - Ames
PB  - The iowa state university
KW  - Agricultura
KW  - Administración de granjas
ER  -