Cita APA (7a ed.)

Heady, E. O., & Jensen, H. R. (1964). Farm management economics ([7th print.].). Prentice-Hall Intenational.

Cita Chicago Style (17a ed.)

Heady, Earl O., y Harald R. Jensen. Farm Management Economics. [7th print.]. New Jersey [etc.]: Prentice-Hall Intenational, 1964.

Cita MLA (9a ed.)

Heady, Earl O., y Harald R. Jensen. Farm Management Economics. [7th print.]. Prentice-Hall Intenational, 1964.