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  - HD 1415 H43
PY  - 1971///
CY  - Ames, Iowa
PB  - Iowa State University
KW  - Agricultura
KW  - Investigación
KW  - Aspectos económicos
ER  -