Cita APA (7a ed.)

Heady, E. O., & Dillon, J. L. (1961). Agricultural production functions. Iowa State University Press.

Cita Chicago Style (17a ed.)

Heady, Earl O., y John L. Dillon. Agricultural Production Functions. Ames: Iowa State University Press, 1961.

Cita MLA (8a ed.)

Heady, Earl O., y John L. Dillon. Agricultural Production Functions. Iowa State University Press, 1961.