Cita APA (7a ed.)

Heady, E. O. (1971). Economic models and quantitative methods for decisions and planning in agriculture: Proceedings. Iowa State University Press.

Cita Chicago Style (17a ed.)

Heady, Earl O. Economic Models and Quantitative Methods for Decisions and Planning in Agriculture: Proceedings. Iowa: Iowa State University Press, 1971.

Cita MLA (8a ed.)

Heady, Earl O. Economic Models and Quantitative Methods for Decisions and Planning in Agriculture: Proceedings. Iowa State University Press, 1971.