Cita APA (7a ed.)

Hardaker, J. B. (1965). Gross margin planning data. University of Cambridge, Farm Economics Branch.

Cita Chicago Style (17a ed.)

Hardaker, J. Brian. Gross Margin Planning Data. Cambridge: University of Cambridge, Farm Economics Branch, 1965.

Cita MLA (9a ed.)

Hardaker, J. Brian. Gross Margin Planning Data. University of Cambridge, Farm Economics Branch, 1965.