Cita APA (7a ed.)
Barnard, C. (1979). Farm planning and control (2nd.ed.). Cambridge Univ..
Cita Chicago Style (17a ed.)
Barnard, C.S. Farm Planning and Control. 2nd.ed. Cambridge: Cambridge Univ., 1979.
Cita MLA (9a ed.)
Barnard, C.S. Farm Planning and Control. 2nd.ed. Cambridge Univ., 1979.
Precaución: Estas citas no son 100% exactas.