TY  - BOOK
AU  - Heady, Earl Orel.
TI  - Economic models and quantitative methods for decisions and planning in agriculture
U1  - 338.1 
PY  - 1971///
CY  - Ames
PB  - Iowa State University
KW  - Agricultura
KW  - Aspectos econÃ³micos
KW  - PolÃ­tica agrÃ­cola
KW  - PolÃ­tica econÃ³mica
ER  -