Cita APA (7a ed.)

Barnard, C., & Nix, J. (1973). Farm planning and control. Cambridge University Press.

Cita Chicago Style (17a ed.)

Barnard, C.S, y J.S Nix. Farm Planning and Control. Cambridge, United Kingdom: Cambridge University Press, 1973.

Cita MLA (9a ed.)

Barnard, C.S, y J.S Nix. Farm Planning and Control. Cambridge University Press, 1973.